Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | /* sx.c -- driver for the Specialix SX series cards. |
| 3 | * |
| 4 | * This driver will also support the older SI, and XIO cards. |
| 5 | * |
| 6 | * |
| 7 | * (C) 1998 - 2004 R.E.Wolff@BitWizard.nl |
| 8 | * |
| 9 | * Simon Allen (simonallen@cix.compulink.co.uk) wrote a previous |
| 10 | * version of this driver. Some fragments may have been copied. (none |
| 11 | * yet :-) |
| 12 | * |
| 13 | * Specialix pays for the development and support of this driver. |
| 14 | * Please DO contact support@specialix.co.uk if you require |
| 15 | * support. But please read the documentation (sx.txt) first. |
| 16 | * |
| 17 | * |
| 18 | * |
| 19 | * This program is free software; you can redistribute it and/or |
| 20 | * modify it under the terms of the GNU General Public License as |
| 21 | * published by the Free Software Foundation; either version 2 of |
| 22 | * the License, or (at your option) any later version. |
| 23 | * |
| 24 | * This program is distributed in the hope that it will be |
| 25 | * useful, but WITHOUT ANY WARRANTY; without even the implied |
| 26 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| 27 | * PURPOSE. See the GNU General Public License for more details. |
| 28 | * |
| 29 | * You should have received a copy of the GNU General Public |
| 30 | * License along with this program; if not, write to the Free |
| 31 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, |
| 32 | * USA. |
| 33 | * |
| 34 | * Revision history: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | * Revision 1.33 2000/03/09 10:00:00 pvdl,wolff |
| 36 | * - Fixed module and port counting |
| 37 | * - Fixed signal handling |
| 38 | * - Fixed an Ooops |
| 39 | * |
| 40 | * Revision 1.32 2000/03/07 09:00:00 wolff,pvdl |
| 41 | * - Fixed some sx_dprintk typos |
| 42 | * - added detection for an invalid board/module configuration |
| 43 | * |
| 44 | * Revision 1.31 2000/03/06 12:00:00 wolff,pvdl |
| 45 | * - Added support for EISA |
| 46 | * |
| 47 | * Revision 1.30 2000/01/21 17:43:06 wolff |
| 48 | * - Added support for SX+ |
| 49 | * |
| 50 | * Revision 1.26 1999/08/05 15:22:14 wolff |
| 51 | * - Port to 2.3.x |
| 52 | * - Reformatted to Linus' liking. |
| 53 | * |
| 54 | * Revision 1.25 1999/07/30 14:24:08 wolff |
| 55 | * Had accidentally left "gs_debug" set to "-1" instead of "off" (=0). |
| 56 | * |
| 57 | * Revision 1.24 1999/07/28 09:41:52 wolff |
| 58 | * - I noticed the remark about use-count straying in sx.txt. I checked |
| 59 | * sx_open, and found a few places where that could happen. I hope it's |
| 60 | * fixed now. |
| 61 | * |
| 62 | * Revision 1.23 1999/07/28 08:56:06 wolff |
| 63 | * - Fixed crash when sx_firmware run twice. |
| 64 | * - Added sx_slowpoll as a module parameter (I guess nobody really wanted |
| 65 | * to change it from the default... ) |
| 66 | * - Fixed a stupid editing problem I introduced in 1.22. |
| 67 | * - Fixed dropping characters on a termios change. |
| 68 | * |
| 69 | * Revision 1.22 1999/07/26 21:01:43 wolff |
| 70 | * Russell Brown noticed that I had overlooked 4 out of six modem control |
| 71 | * signals in sx_getsignals. Ooops. |
| 72 | * |
| 73 | * Revision 1.21 1999/07/23 09:11:33 wolff |
| 74 | * I forgot to free dynamically allocated memory when the driver is unloaded. |
| 75 | * |
| 76 | * Revision 1.20 1999/07/20 06:25:26 wolff |
| 77 | * The "closing wait" wasn't honoured. Thanks to James Griffiths for |
| 78 | * reporting this. |
| 79 | * |
| 80 | * Revision 1.19 1999/07/11 08:59:59 wolff |
| 81 | * Fixed an oops in close, when an open was pending. Changed the memtest |
| 82 | * a bit. Should also test the board in word-mode, however my card fails the |
| 83 | * memtest then. I still have to figure out what is wrong... |
| 84 | * |
| 85 | * Revision 1.18 1999/06/10 09:38:42 wolff |
| 86 | * Changed the format of the firmware revision from %04x to %x.%02x . |
| 87 | * |
| 88 | * Revision 1.17 1999/06/04 09:44:35 wolff |
| 89 | * fixed problem: reference to pci stuff when config_pci was off... |
| 90 | * Thanks to Jorge Novo for noticing this. |
| 91 | * |
| 92 | * Revision 1.16 1999/06/02 08:30:15 wolff |
| 93 | * added/removed the workaround for the DCD bug in the Firmware. |
| 94 | * A bit more debugging code to locate that... |
| 95 | * |
| 96 | * Revision 1.15 1999/06/01 11:35:30 wolff |
| 97 | * when DCD is left low (floating?), on TA's the firmware first tells us |
| 98 | * that DCD is high, but after a short while suddenly comes to the |
| 99 | * conclusion that it is low. All this would be fine, if it weren't that |
| 100 | * Unix requires us to send a "hangup" signal in that case. This usually |
| 101 | * all happens BEFORE the program has had a chance to ioctl the device |
| 102 | * into clocal mode.. |
| 103 | * |
| 104 | * Revision 1.14 1999/05/25 11:18:59 wolff |
| 105 | * Added PCI-fix. |
| 106 | * Added checks for return code of sx_sendcommand. |
| 107 | * Don't issue "reconfig" if port isn't open yet. (bit us on TA modules...) |
| 108 | * |
| 109 | * Revision 1.13 1999/04/29 15:18:01 wolff |
| 110 | * Fixed an "oops" that showed on SuSE 6.0 systems. |
| 111 | * Activate DTR again after stty 0. |
| 112 | * |
| 113 | * Revision 1.12 1999/04/29 07:49:52 wolff |
| 114 | * Improved "stty 0" handling a bit. (used to change baud to 9600 assuming |
| 115 | * the connection would be dropped anyway. That is not always the case, |
| 116 | * and confuses people). |
| 117 | * Told the card to always monitor the modem signals. |
| 118 | * Added support for dynamic gs_debug adjustments. |
| 119 | * Now tells the rest of the system the number of ports. |
| 120 | * |
| 121 | * Revision 1.11 1999/04/24 11:11:30 wolff |
| 122 | * Fixed two stupid typos in the memory test. |
| 123 | * |
| 124 | * Revision 1.10 1999/04/24 10:53:39 wolff |
| 125 | * Added some of Christian's suggestions. |
| 126 | * Fixed an HW_COOK_IN bug (ISIG was not in I_OTHER. We used to trust the |
| 127 | * card to send the signal to the process.....) |
| 128 | * |
| 129 | * Revision 1.9 1999/04/23 07:26:38 wolff |
| 130 | * Included Christian Lademann's 2.0 compile-warning fixes and interrupt |
| 131 | * assignment redesign. |
| 132 | * Cleanup of some other stuff. |
| 133 | * |
| 134 | * Revision 1.8 1999/04/16 13:05:30 wolff |
| 135 | * fixed a DCD change unnoticed bug. |
| 136 | * |
| 137 | * Revision 1.7 1999/04/14 22:19:51 wolff |
| 138 | * Fixed typo that showed up in 2.0.x builds (get_user instead of Get_user!) |
| 139 | * |
| 140 | * Revision 1.6 1999/04/13 18:40:20 wolff |
| 141 | * changed misc-minor to 161, as assigned by HPA. |
| 142 | * |
| 143 | * Revision 1.5 1999/04/13 15:12:25 wolff |
| 144 | * Fixed use-count leak when "hangup" occurred. |
| 145 | * Added workaround for a stupid-PCIBIOS bug. |
| 146 | * |
| 147 | * |
| 148 | * Revision 1.4 1999/04/01 22:47:40 wolff |
| 149 | * Fixed < 1M linux-2.0 problem. |
| 150 | * (vremap isn't compatible with ioremap in that case) |
| 151 | * |
| 152 | * Revision 1.3 1999/03/31 13:45:45 wolff |
| 153 | * Firmware loading is now done through a separate IOCTL. |
| 154 | * |
| 155 | * Revision 1.2 1999/03/28 12:22:29 wolff |
| 156 | * rcs cleanup |
| 157 | * |
| 158 | * Revision 1.1 1999/03/28 12:10:34 wolff |
| 159 | * Readying for release on 2.0.x (sorry David, 1.01 becomes 1.1 for RCS). |
| 160 | * |
| 161 | * Revision 0.12 1999/03/28 09:20:10 wolff |
| 162 | * Fixed problem in 0.11, continueing cleanup. |
| 163 | * |
| 164 | * Revision 0.11 1999/03/28 08:46:44 wolff |
| 165 | * cleanup. Not good. |
| 166 | * |
| 167 | * Revision 0.10 1999/03/28 08:09:43 wolff |
| 168 | * Fixed loosing characters on close. |
| 169 | * |
| 170 | * Revision 0.9 1999/03/21 22:52:01 wolff |
| 171 | * Ported back to 2.2.... (minor things) |
| 172 | * |
| 173 | * Revision 0.8 1999/03/21 22:40:33 wolff |
| 174 | * Port to 2.0 |
| 175 | * |
| 176 | * Revision 0.7 1999/03/21 19:06:34 wolff |
| 177 | * Fixed hangup processing. |
| 178 | * |
| 179 | * Revision 0.6 1999/02/05 08:45:14 wolff |
| 180 | * fixed real_raw problems. Inclusion into kernel imminent. |
| 181 | * |
| 182 | * Revision 0.5 1998/12/21 23:51:06 wolff |
| 183 | * Snatched a nasty bug: sx_transmit_chars was getting re-entered, and it |
| 184 | * shouldn't have. THATs why I want to have transmit interrupts even when |
| 185 | * the buffer is empty. |
| 186 | * |
| 187 | * Revision 0.4 1998/12/17 09:34:46 wolff |
| 188 | * PPP works. ioctl works. Basically works! |
| 189 | * |
| 190 | * Revision 0.3 1998/12/15 13:05:18 wolff |
| 191 | * It works! Wow! Gotta start implementing IOCTL and stuff.... |
| 192 | * |
| 193 | * Revision 0.2 1998/12/01 08:33:53 wolff |
| 194 | * moved over to 2.1.130 |
| 195 | * |
| 196 | * Revision 0.1 1998/11/03 21:23:51 wolff |
| 197 | * Initial revision. Detects SX card. |
| 198 | * |
| 199 | * */ |
| 200 | |
Jiri Slaby | 11c8387 | 2006-12-08 02:38:56 -0800 | [diff] [blame] | 201 | #define SX_VERSION 1.33 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | #include <linux/kdev_t.h> |
| 205 | #include <linux/kernel.h> |
| 206 | #include <linux/sched.h> |
| 207 | #include <linux/ioport.h> |
| 208 | #include <linux/interrupt.h> |
| 209 | #include <linux/errno.h> |
| 210 | #include <linux/tty.h> |
| 211 | #include <linux/tty_flip.h> |
| 212 | #include <linux/mm.h> |
| 213 | #include <linux/serial.h> |
| 214 | #include <linux/fcntl.h> |
| 215 | #include <linux/major.h> |
| 216 | #include <linux/delay.h> |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 217 | #include <linux/eisa.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | #include <linux/pci.h> |
| 219 | #include <linux/slab.h> |
| 220 | #include <linux/init.h> |
| 221 | #include <linux/miscdevice.h> |
| 222 | #include <linux/bitops.h> |
| 223 | |
| 224 | #include <asm/io.h> |
| 225 | #include <asm/uaccess.h> |
| 226 | |
| 227 | /* The 3.0.0 version of sxboards/sxwindow.h uses BYTE and WORD.... */ |
| 228 | #define BYTE u8 |
| 229 | #define WORD u16 |
| 230 | |
| 231 | /* .... but the 3.0.4 version uses _u8 and _u16. */ |
| 232 | #define _u8 u8 |
| 233 | #define _u16 u16 |
| 234 | |
| 235 | #include "sxboards.h" |
| 236 | #include "sxwindow.h" |
| 237 | |
| 238 | #include <linux/generic_serial.h> |
| 239 | #include "sx.h" |
| 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | /* I don't think that this driver can handle more than 256 ports on |
| 242 | one machine. You'll have to increase the number of boards in sx.h |
| 243 | if you want more than 4 boards. */ |
| 244 | |
| 245 | #ifndef PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8 |
| 246 | #define PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8 0x2000 |
| 247 | #endif |
| 248 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | /* Configurable options: |
| 250 | (Don't be too sure that it'll work if you toggle them) */ |
| 251 | |
| 252 | /* Am I paranoid or not ? ;-) */ |
| 253 | #undef SX_PARANOIA_CHECK |
| 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | /* 20 -> 2000 per second. The card should rate-limit interrupts at 100 |
| 256 | Hz, but it is user configurable. I don't recommend going above 1000 |
| 257 | Hz. The interrupt ratelimit might trigger if the interrupt is |
| 258 | shared with a very active other device. */ |
| 259 | #define IRQ_RATE_LIMIT 20 |
| 260 | |
| 261 | /* Sharing interrupts is possible now. If the other device wants more |
| 262 | than 2000 interrupts per second, we'd gracefully decline further |
| 263 | interrupts. That's not what we want. On the other hand, if the |
| 264 | other device interrupts 2000 times a second, don't use the SX |
| 265 | interrupt. Use polling. */ |
| 266 | #undef IRQ_RATE_LIMIT |
| 267 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | #if 0 |
| 269 | /* Not implemented */ |
| 270 | /* |
| 271 | * The following defines are mostly for testing purposes. But if you need |
| 272 | * some nice reporting in your syslog, you can define them also. |
| 273 | */ |
| 274 | #define SX_REPORT_FIFO |
| 275 | #define SX_REPORT_OVERRUN |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 276 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | |
| 278 | /* Function prototypes */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 279 | static void sx_disable_tx_interrupts(void *ptr); |
| 280 | static void sx_enable_tx_interrupts(void *ptr); |
| 281 | static void sx_disable_rx_interrupts(void *ptr); |
| 282 | static void sx_enable_rx_interrupts(void *ptr); |
| 283 | static int sx_get_CD(void *ptr); |
| 284 | static void sx_shutdown_port(void *ptr); |
| 285 | static int sx_set_real_termios(void *ptr); |
| 286 | static void sx_close(void *ptr); |
| 287 | static int sx_chars_in_buffer(void *ptr); |
| 288 | static int sx_init_board(struct sx_board *board); |
| 289 | static int sx_init_portstructs(int nboards, int nports); |
| 290 | static int sx_fw_ioctl(struct inode *inode, struct file *filp, |
| 291 | unsigned int cmd, unsigned long arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | static int sx_init_drivers(void); |
| 293 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | static struct tty_driver *sx_driver; |
| 295 | |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 296 | static DEFINE_MUTEX(sx_boards_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | static struct sx_board boards[SX_NBOARDS]; |
| 298 | static struct sx_port *sx_ports; |
| 299 | static int sx_initialized; |
| 300 | static int sx_nports; |
| 301 | static int sx_debug; |
| 302 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | /* You can have the driver poll your card. |
| 304 | - Set sx_poll to 1 to poll every timer tick (10ms on Intel). |
| 305 | This is used when the card cannot use an interrupt for some reason. |
| 306 | |
| 307 | - set sx_slowpoll to 100 to do an extra poll once a second (on Intel). If |
| 308 | the driver misses an interrupt (report this if it DOES happen to you!) |
| 309 | everything will continue to work.... |
| 310 | */ |
| 311 | static int sx_poll = 1; |
| 312 | static int sx_slowpoll; |
| 313 | |
| 314 | /* The card limits the number of interrupts per second. |
| 315 | At 115k2 "100" should be sufficient. |
| 316 | If you're using higher baudrates, you can increase this... |
| 317 | */ |
| 318 | |
| 319 | static int sx_maxints = 100; |
| 320 | |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 321 | #ifdef CONFIG_ISA |
| 322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | /* These are the only open spaces in my computer. Yours may have more |
| 324 | or less.... -- REW |
| 325 | duh: Card at 0xa0000 is possible on HP Netserver?? -- pvdl |
| 326 | */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 327 | static int sx_probe_addrs[] = { |
| 328 | 0xc0000, 0xd0000, 0xe0000, |
| 329 | 0xc8000, 0xd8000, 0xe8000 |
| 330 | }; |
| 331 | static int si_probe_addrs[] = { |
| 332 | 0xc0000, 0xd0000, 0xe0000, |
| 333 | 0xc8000, 0xd8000, 0xe8000, 0xa0000 |
| 334 | }; |
| 335 | static int si1_probe_addrs[] = { |
| 336 | 0xd0000 |
| 337 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
Tobias Klauser | fe97107 | 2006-01-09 20:54:02 -0800 | [diff] [blame] | 339 | #define NR_SX_ADDRS ARRAY_SIZE(sx_probe_addrs) |
| 340 | #define NR_SI_ADDRS ARRAY_SIZE(si_probe_addrs) |
| 341 | #define NR_SI1_ADDRS ARRAY_SIZE(si1_probe_addrs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 343 | module_param_array(sx_probe_addrs, int, NULL, 0); |
| 344 | module_param_array(si_probe_addrs, int, NULL, 0); |
| 345 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
| 347 | /* Set the mask to all-ones. This alas, only supports 32 interrupts. |
| 348 | Some architectures may need more. */ |
| 349 | static int sx_irqmask = -1; |
| 350 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | module_param(sx_poll, int, 0); |
| 352 | module_param(sx_slowpoll, int, 0); |
| 353 | module_param(sx_maxints, int, 0); |
| 354 | module_param(sx_debug, int, 0); |
| 355 | module_param(sx_irqmask, int, 0); |
| 356 | |
| 357 | MODULE_LICENSE("GPL"); |
| 358 | |
| 359 | static struct real_driver sx_real_driver = { |
| 360 | sx_disable_tx_interrupts, |
| 361 | sx_enable_tx_interrupts, |
| 362 | sx_disable_rx_interrupts, |
| 363 | sx_enable_rx_interrupts, |
| 364 | sx_get_CD, |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 365 | sx_shutdown_port, |
| 366 | sx_set_real_termios, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | sx_chars_in_buffer, |
| 368 | sx_close, |
| 369 | }; |
| 370 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | /* |
| 372 | This driver can spew a whole lot of debugging output at you. If you |
| 373 | need maximum performance, you should disable the DEBUG define. To |
| 374 | aid in debugging in the field, I'm leaving the compile-time debug |
| 375 | features enabled, and disable them "runtime". That allows me to |
| 376 | instruct people with problems to enable debugging without requiring |
| 377 | them to recompile... |
| 378 | */ |
| 379 | #define DEBUG |
| 380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | #ifdef DEBUG |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 382 | #define sx_dprintk(f, str...) if (sx_debug & f) printk (str) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | #else |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 384 | #define sx_dprintk(f, str...) /* nothing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | #endif |
| 386 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 387 | #define func_enter() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s\n",__FUNCTION__) |
| 388 | #define func_exit() sx_dprintk(SX_DEBUG_FLOW, "sx: exit %s\n",__FUNCTION__) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 390 | #define func_enter2() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s (port %d)\n", \ |
| 391 | __FUNCTION__, port->line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
| 393 | /* |
| 394 | * Firmware loader driver specific routines |
| 395 | * |
| 396 | */ |
| 397 | |
Arjan van de Ven | 62322d2 | 2006-07-03 00:24:21 -0700 | [diff] [blame] | 398 | static const struct file_operations sx_fw_fops = { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 399 | .owner = THIS_MODULE, |
| 400 | .ioctl = sx_fw_ioctl, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | }; |
| 402 | |
| 403 | static struct miscdevice sx_fw_device = { |
| 404 | SXCTL_MISC_MINOR, "sxctl", &sx_fw_fops |
| 405 | }; |
| 406 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | #ifdef SX_PARANOIA_CHECK |
| 408 | |
| 409 | /* This doesn't work. Who's paranoid around here? Not me! */ |
| 410 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 411 | static inline int sx_paranoia_check(struct sx_port const *port, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | char *name, const char *routine) |
| 413 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 414 | static const char *badmagic = KERN_ERR "sx: Warning: bad sx port magic " |
| 415 | "number for device %s in %s\n"; |
| 416 | static const char *badinfo = KERN_ERR "sx: Warning: null sx port for " |
| 417 | "device %s in %s\n"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | if (!port) { |
| 420 | printk(badinfo, name, routine); |
| 421 | return 1; |
| 422 | } |
| 423 | if (port->magic != SX_MAGIC) { |
| 424 | printk(badmagic, name, routine); |
| 425 | return 1; |
| 426 | } |
| 427 | |
| 428 | return 0; |
| 429 | } |
| 430 | #else |
| 431 | #define sx_paranoia_check(a,b,c) 0 |
| 432 | #endif |
| 433 | |
| 434 | /* The timeouts. First try 30 times as fast as possible. Then give |
| 435 | the card some time to breathe between accesses. (Otherwise the |
| 436 | processor on the card might not be able to access its OWN bus... */ |
| 437 | |
| 438 | #define TIMEOUT_1 30 |
| 439 | #define TIMEOUT_2 1000000 |
| 440 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | #ifdef DEBUG |
| 442 | static void my_hd_io(void __iomem *p, int len) |
| 443 | { |
| 444 | int i, j, ch; |
| 445 | unsigned char __iomem *addr = p; |
| 446 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 447 | for (i = 0; i < len; i += 16) { |
| 448 | printk("%p ", addr + i); |
| 449 | for (j = 0; j < 16; j++) { |
| 450 | printk("%02x %s", readb(addr + j + i), |
| 451 | (j == 7) ? " " : ""); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 453 | for (j = 0; j < 16; j++) { |
| 454 | ch = readb(addr + j + i); |
| 455 | printk("%c", (ch < 0x20) ? '.' : |
| 456 | ((ch > 0x7f) ? '.' : ch)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 458 | printk("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | } |
| 460 | } |
| 461 | static void my_hd(void *p, int len) |
| 462 | { |
| 463 | int i, j, ch; |
| 464 | unsigned char *addr = p; |
| 465 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 466 | for (i = 0; i < len; i += 16) { |
| 467 | printk("%p ", addr + i); |
| 468 | for (j = 0; j < 16; j++) { |
| 469 | printk("%02x %s", addr[j + i], (j == 7) ? " " : ""); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 471 | for (j = 0; j < 16; j++) { |
| 472 | ch = addr[j + i]; |
| 473 | printk("%c", (ch < 0x20) ? '.' : |
| 474 | ((ch > 0x7f) ? '.' : ch)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 476 | printk("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | } |
| 478 | } |
| 479 | #endif |
| 480 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | /* This needs redoing for Alpha -- REW -- Done. */ |
| 482 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 483 | static inline void write_sx_byte(struct sx_board *board, int offset, u8 byte) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 485 | writeb(byte, board->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | } |
| 487 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 488 | static inline u8 read_sx_byte(struct sx_board *board, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 490 | return readb(board->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | } |
| 492 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 493 | static inline void write_sx_word(struct sx_board *board, int offset, u16 word) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 495 | writew(word, board->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | } |
| 497 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 498 | static inline u16 read_sx_word(struct sx_board *board, int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 500 | return readw(board->base + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | } |
| 502 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 503 | static int sx_busy_wait_eq(struct sx_board *board, |
| 504 | int offset, int mask, int correctval) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | { |
| 506 | int i; |
| 507 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 508 | func_enter(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 510 | for (i = 0; i < TIMEOUT_1; i++) |
| 511 | if ((read_sx_byte(board, offset) & mask) == correctval) { |
| 512 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | return 1; |
| 514 | } |
| 515 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 516 | for (i = 0; i < TIMEOUT_2; i++) { |
| 517 | if ((read_sx_byte(board, offset) & mask) == correctval) { |
| 518 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | return 1; |
| 520 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 521 | udelay(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | } |
| 523 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 524 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | return 0; |
| 526 | } |
| 527 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 528 | static int sx_busy_wait_neq(struct sx_board *board, |
| 529 | int offset, int mask, int badval) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | { |
| 531 | int i; |
| 532 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 533 | func_enter(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 535 | for (i = 0; i < TIMEOUT_1; i++) |
| 536 | if ((read_sx_byte(board, offset) & mask) != badval) { |
| 537 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | return 1; |
| 539 | } |
| 540 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 541 | for (i = 0; i < TIMEOUT_2; i++) { |
| 542 | if ((read_sx_byte(board, offset) & mask) != badval) { |
| 543 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | return 1; |
| 545 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 546 | udelay(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | } |
| 548 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 549 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | return 0; |
| 551 | } |
| 552 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | /* 5.6.4 of 6210028 r2.3 */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 554 | static int sx_reset(struct sx_board *board) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 556 | func_enter(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 558 | if (IS_SX_BOARD(board)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 560 | write_sx_byte(board, SX_CONFIG, 0); |
| 561 | write_sx_byte(board, SX_RESET, 1); /* Value doesn't matter */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 563 | if (!sx_busy_wait_eq(board, SX_RESET_STATUS, 1, 0)) { |
| 564 | printk(KERN_INFO "sx: Card doesn't respond to " |
| 565 | "reset...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | return 0; |
| 567 | } |
| 568 | } else if (IS_EISA_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 569 | outb(board->irq << 4, board->eisa_base + 0xc02); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | } else if (IS_SI1_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 571 | write_sx_byte(board, SI1_ISA_RESET, 0); /*value doesn't matter*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | } else { |
| 573 | /* Gory details of the SI/ISA board */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 574 | write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_SET); |
| 575 | write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_CLEAR); |
| 576 | write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_CLEAR); |
| 577 | write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_CLEAR); |
| 578 | write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_CLEAR); |
| 579 | write_sx_byte(board, SI2_ISA_IRQSET, SI2_ISA_IRQSET_CLEAR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | } |
| 581 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 582 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | return 1; |
| 584 | } |
| 585 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | /* This doesn't work on machines where "NULL" isn't 0 */ |
| 587 | /* If you have one of those, someone will need to write |
| 588 | the equivalent of this, which will amount to about 3 lines. I don't |
| 589 | want to complicate this right now. -- REW |
| 590 | (See, I do write comments every now and then :-) */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 591 | #define OFFSETOF(strct, elem) ((long)&(((struct strct *)NULL)->elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 593 | #define CHAN_OFFSET(port,elem) (port->ch_base + OFFSETOF (_SXCHANNEL, elem)) |
| 594 | #define MODU_OFFSET(board,addr,elem) (addr + OFFSETOF (_SXMODULE, elem)) |
| 595 | #define BRD_OFFSET(board,elem) (OFFSETOF (_SXCARD, elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
| 597 | #define sx_write_channel_byte(port, elem, val) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 598 | write_sx_byte (port->board, CHAN_OFFSET (port, elem), val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | |
| 600 | #define sx_read_channel_byte(port, elem) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 601 | read_sx_byte (port->board, CHAN_OFFSET (port, elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | |
| 603 | #define sx_write_channel_word(port, elem, val) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 604 | write_sx_word (port->board, CHAN_OFFSET (port, elem), val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | |
| 606 | #define sx_read_channel_word(port, elem) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 607 | read_sx_word (port->board, CHAN_OFFSET (port, elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | |
| 609 | #define sx_write_module_byte(board, addr, elem, val) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 610 | write_sx_byte (board, MODU_OFFSET (board, addr, elem), val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | |
| 612 | #define sx_read_module_byte(board, addr, elem) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 613 | read_sx_byte (board, MODU_OFFSET (board, addr, elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | |
| 615 | #define sx_write_module_word(board, addr, elem, val) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 616 | write_sx_word (board, MODU_OFFSET (board, addr, elem), val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | |
| 618 | #define sx_read_module_word(board, addr, elem) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 619 | read_sx_word (board, MODU_OFFSET (board, addr, elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | |
| 621 | #define sx_write_board_byte(board, elem, val) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 622 | write_sx_byte (board, BRD_OFFSET (board, elem), val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | |
| 624 | #define sx_read_board_byte(board, elem) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 625 | read_sx_byte (board, BRD_OFFSET (board, elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | |
| 627 | #define sx_write_board_word(board, elem, val) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 628 | write_sx_word (board, BRD_OFFSET (board, elem), val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | |
| 630 | #define sx_read_board_word(board, elem) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 631 | read_sx_word (board, BRD_OFFSET (board, elem)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 633 | static int sx_start_board(struct sx_board *board) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 635 | if (IS_SX_BOARD(board)) { |
| 636 | write_sx_byte(board, SX_CONFIG, SX_CONF_BUSEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | } else if (IS_EISA_BOARD(board)) { |
| 638 | write_sx_byte(board, SI2_EISA_OFF, SI2_EISA_VAL); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 639 | outb((board->irq << 4) | 4, board->eisa_base + 0xc02); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | } else if (IS_SI1_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 641 | write_sx_byte(board, SI1_ISA_RESET_CLEAR, 0); |
| 642 | write_sx_byte(board, SI1_ISA_INTCL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | } else { |
| 644 | /* Don't bug me about the clear_set. |
| 645 | I haven't the foggiest idea what it's about -- REW */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 646 | write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_CLEAR); |
| 647 | write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | } |
| 649 | return 1; |
| 650 | } |
| 651 | |
| 652 | #define SX_IRQ_REG_VAL(board) \ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 653 | ((board->flags & SX_ISA_BOARD) ? (board->irq << 4) : 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | |
| 655 | /* Note. The SX register is write-only. Therefore, we have to enable the |
| 656 | bus too. This is a no-op, if you don't mess with this driver... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 657 | static int sx_start_interrupts(struct sx_board *board) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | { |
| 659 | |
| 660 | /* Don't call this with board->irq == 0 */ |
| 661 | |
| 662 | if (IS_SX_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 663 | write_sx_byte(board, SX_CONFIG, SX_IRQ_REG_VAL(board) | |
| 664 | SX_CONF_BUSEN | SX_CONF_HOSTIRQ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | } else if (IS_EISA_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 666 | inb(board->eisa_base + 0xc03); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | } else if (IS_SI1_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 668 | write_sx_byte(board, SI1_ISA_INTCL, 0); |
| 669 | write_sx_byte(board, SI1_ISA_INTCL_CLEAR, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | } else { |
| 671 | switch (board->irq) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 672 | case 11: |
| 673 | write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_SET); |
| 674 | break; |
| 675 | case 12: |
| 676 | write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_SET); |
| 677 | break; |
| 678 | case 15: |
| 679 | write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_SET); |
| 680 | break; |
| 681 | default: |
| 682 | printk(KERN_INFO "sx: SI/XIO card doesn't support " |
| 683 | "interrupt %d.\n", board->irq); |
| 684 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 686 | write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | } |
| 688 | |
| 689 | return 1; |
| 690 | } |
| 691 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 692 | static int sx_send_command(struct sx_port *port, |
| 693 | int command, int mask, int newstat) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 695 | func_enter2(); |
| 696 | write_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat), command); |
| 697 | func_exit(); |
| 698 | return sx_busy_wait_eq(port->board, CHAN_OFFSET(port, hi_hstat), mask, |
| 699 | newstat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | } |
| 701 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 702 | static char *mod_type_s(int module_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | { |
| 704 | switch (module_type) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 705 | case TA4: |
| 706 | return "TA4"; |
| 707 | case TA8: |
| 708 | return "TA8"; |
| 709 | case TA4_ASIC: |
| 710 | return "TA4_ASIC"; |
| 711 | case TA8_ASIC: |
| 712 | return "TA8_ASIC"; |
| 713 | case MTA_CD1400: |
| 714 | return "MTA_CD1400"; |
| 715 | case SXDC: |
| 716 | return "SXDC"; |
| 717 | default: |
| 718 | return "Unknown/invalid"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | } |
| 720 | } |
| 721 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 722 | static char *pan_type_s(int pan_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | { |
| 724 | switch (pan_type) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 725 | case MOD_RS232DB25: |
| 726 | return "MOD_RS232DB25"; |
| 727 | case MOD_RS232RJ45: |
| 728 | return "MOD_RS232RJ45"; |
| 729 | case MOD_RS422DB25: |
| 730 | return "MOD_RS422DB25"; |
| 731 | case MOD_PARALLEL: |
| 732 | return "MOD_PARALLEL"; |
| 733 | case MOD_2_RS232DB25: |
| 734 | return "MOD_2_RS232DB25"; |
| 735 | case MOD_2_RS232RJ45: |
| 736 | return "MOD_2_RS232RJ45"; |
| 737 | case MOD_2_RS422DB25: |
| 738 | return "MOD_2_RS422DB25"; |
| 739 | case MOD_RS232DB25MALE: |
| 740 | return "MOD_RS232DB25MALE"; |
| 741 | case MOD_2_PARALLEL: |
| 742 | return "MOD_2_PARALLEL"; |
| 743 | case MOD_BLANK: |
| 744 | return "empty"; |
| 745 | default: |
| 746 | return "invalid"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | } |
| 748 | } |
| 749 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 750 | static int mod_compat_type(int module_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | { |
| 752 | return module_type >> 4; |
| 753 | } |
| 754 | |
| 755 | static void sx_reconfigure_port(struct sx_port *port) |
| 756 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 757 | if (sx_read_channel_byte(port, hi_hstat) == HS_IDLE_OPEN) { |
| 758 | if (sx_send_command(port, HS_CONFIG, -1, HS_IDLE_OPEN) != 1) { |
| 759 | printk(KERN_WARNING "sx: Sent reconfigure command, but " |
| 760 | "card didn't react.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | } |
| 762 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 763 | sx_dprintk(SX_DEBUG_TERMIOS, "sx: Not sending reconfigure: " |
| 764 | "port isn't open (%02x).\n", |
| 765 | sx_read_channel_byte(port, hi_hstat)); |
| 766 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | } |
| 768 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 769 | static void sx_setsignals(struct sx_port *port, int dtr, int rts) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | { |
| 771 | int t; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 772 | func_enter2(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 774 | t = sx_read_channel_byte(port, hi_op); |
| 775 | if (dtr >= 0) |
| 776 | t = dtr ? (t | OP_DTR) : (t & ~OP_DTR); |
| 777 | if (rts >= 0) |
| 778 | t = rts ? (t | OP_RTS) : (t & ~OP_RTS); |
| 779 | sx_write_channel_byte(port, hi_op, t); |
| 780 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "setsignals: %d/%d\n", dtr, rts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 782 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | } |
| 784 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 785 | static int sx_getsignals(struct sx_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 787 | int i_stat, o_stat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 789 | o_stat = sx_read_channel_byte(port, hi_op); |
| 790 | i_stat = sx_read_channel_byte(port, hi_ip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 792 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "getsignals: %d/%d (%d/%d) " |
| 793 | "%02x/%02x\n", |
| 794 | (o_stat & OP_DTR) != 0, (o_stat & OP_RTS) != 0, |
| 795 | port->c_dcd, sx_get_CD(port), |
| 796 | sx_read_channel_byte(port, hi_ip), |
| 797 | sx_read_channel_byte(port, hi_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 799 | return (((o_stat & OP_DTR) ? TIOCM_DTR : 0) | |
| 800 | ((o_stat & OP_RTS) ? TIOCM_RTS : 0) | |
| 801 | ((i_stat & IP_CTS) ? TIOCM_CTS : 0) | |
| 802 | ((i_stat & IP_DCD) ? TIOCM_CAR : 0) | |
| 803 | ((i_stat & IP_DSR) ? TIOCM_DSR : 0) | |
| 804 | ((i_stat & IP_RI) ? TIOCM_RNG : 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | } |
| 806 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 807 | static void sx_set_baud(struct sx_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | { |
| 809 | int t; |
| 810 | |
| 811 | if (port->board->ta_type == MOD_SXDC) { |
| 812 | switch (port->gs.baud) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 813 | /* Save some typing work... */ |
| 814 | #define e(x) case x: t = BAUD_ ## x; break |
| 815 | e(50); |
| 816 | e(75); |
| 817 | e(110); |
| 818 | e(150); |
| 819 | e(200); |
| 820 | e(300); |
| 821 | e(600); |
| 822 | e(1200); |
| 823 | e(1800); |
| 824 | e(2000); |
| 825 | e(2400); |
| 826 | e(4800); |
| 827 | e(7200); |
| 828 | e(9600); |
| 829 | e(14400); |
| 830 | e(19200); |
| 831 | e(28800); |
| 832 | e(38400); |
| 833 | e(56000); |
| 834 | e(57600); |
| 835 | e(64000); |
| 836 | e(76800); |
| 837 | e(115200); |
| 838 | e(128000); |
| 839 | e(150000); |
| 840 | e(230400); |
| 841 | e(256000); |
| 842 | e(460800); |
| 843 | e(921600); |
| 844 | case 134: |
| 845 | t = BAUD_134_5; |
| 846 | break; |
| 847 | case 0: |
| 848 | t = -1; |
| 849 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | default: |
| 851 | /* Can I return "invalid"? */ |
| 852 | t = BAUD_9600; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 853 | printk(KERN_INFO "sx: unsupported baud rate: %d.\n", |
| 854 | port->gs.baud); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | break; |
| 856 | } |
| 857 | #undef e |
| 858 | if (t > 0) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 859 | /* The baud rate is not set to 0, so we're enabeling DTR... -- REW */ |
| 860 | sx_setsignals(port, 1, -1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | /* XXX This is not TA & MTA compatible */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 862 | sx_write_channel_byte(port, hi_csr, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 864 | sx_write_channel_byte(port, hi_txbaud, t); |
| 865 | sx_write_channel_byte(port, hi_rxbaud, t); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 867 | sx_setsignals(port, 0, -1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | } |
| 869 | } else { |
| 870 | switch (port->gs.baud) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 871 | #define e(x) case x: t = CSR_ ## x; break |
| 872 | e(75); |
| 873 | e(150); |
| 874 | e(300); |
| 875 | e(600); |
| 876 | e(1200); |
| 877 | e(2400); |
| 878 | e(4800); |
| 879 | e(1800); |
| 880 | e(9600); |
| 881 | e(19200); |
| 882 | e(57600); |
| 883 | e(38400); |
| 884 | /* TA supports 110, but not 115200, MTA supports 115200, but not 110 */ |
| 885 | case 110: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | if (port->board->ta_type == MOD_TA) { |
| 887 | t = CSR_110; |
| 888 | break; |
| 889 | } else { |
| 890 | t = CSR_9600; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 891 | printk(KERN_INFO "sx: Unsupported baud rate: " |
| 892 | "%d.\n", port->gs.baud); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | break; |
| 894 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 895 | case 115200: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | if (port->board->ta_type == MOD_TA) { |
| 897 | t = CSR_9600; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 898 | printk(KERN_INFO "sx: Unsupported baud rate: " |
| 899 | "%d.\n", port->gs.baud); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | break; |
| 901 | } else { |
| 902 | t = CSR_110; |
| 903 | break; |
| 904 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 905 | case 0: |
| 906 | t = -1; |
| 907 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | default: |
| 909 | t = CSR_9600; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 910 | printk(KERN_INFO "sx: Unsupported baud rate: %d.\n", |
| 911 | port->gs.baud); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | break; |
| 913 | } |
| 914 | #undef e |
| 915 | if (t >= 0) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 916 | sx_setsignals(port, 1, -1); |
| 917 | sx_write_channel_byte(port, hi_csr, t * 0x11); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 919 | sx_setsignals(port, 0, -1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | } |
| 921 | } |
| 922 | } |
| 923 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | /* Simon Allen's version of this routine was 225 lines long. 85 is a lot |
| 925 | better. -- REW */ |
| 926 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 927 | static int sx_set_real_termios(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | { |
| 929 | struct sx_port *port = ptr; |
| 930 | |
| 931 | func_enter2(); |
| 932 | |
| 933 | if (!port->gs.tty) |
| 934 | return 0; |
| 935 | |
| 936 | /* What is this doing here? -- REW |
| 937 | Ha! figured it out. It is to allow you to get DTR active again |
| 938 | if you've dropped it with stty 0. Moved to set_baud, where it |
| 939 | belongs (next to the drop dtr if baud == 0) -- REW */ |
| 940 | /* sx_setsignals (port, 1, -1); */ |
| 941 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 942 | sx_set_baud(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | |
| 944 | #define CFLAG port->gs.tty->termios->c_cflag |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 945 | sx_write_channel_byte(port, hi_mr1, |
| 946 | (C_PARENB(port->gs.tty) ? MR1_WITH : MR1_NONE) | |
| 947 | (C_PARODD(port->gs.tty) ? MR1_ODD : MR1_EVEN) | |
| 948 | (C_CRTSCTS(port->gs.tty) ? MR1_RTS_RXFLOW : 0) | |
| 949 | (((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) | |
| 950 | (((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) | |
| 951 | (((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) | |
| 952 | (((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 954 | sx_write_channel_byte(port, hi_mr2, |
| 955 | (C_CRTSCTS(port->gs.tty) ? MR2_CTS_TXFLOW : 0) | |
| 956 | (C_CSTOPB(port->gs.tty) ? MR2_2_STOP : |
| 957 | MR2_1_STOP)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | |
| 959 | switch (CFLAG & CSIZE) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 960 | case CS8: |
| 961 | sx_write_channel_byte(port, hi_mask, 0xff); |
| 962 | break; |
| 963 | case CS7: |
| 964 | sx_write_channel_byte(port, hi_mask, 0x7f); |
| 965 | break; |
| 966 | case CS6: |
| 967 | sx_write_channel_byte(port, hi_mask, 0x3f); |
| 968 | break; |
| 969 | case CS5: |
| 970 | sx_write_channel_byte(port, hi_mask, 0x1f); |
| 971 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | default: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 973 | printk(KERN_INFO "sx: Invalid wordsize: %u\n", CFLAG & CSIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | break; |
| 975 | } |
| 976 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 977 | sx_write_channel_byte(port, hi_prtcl, |
| 978 | (I_IXON(port->gs.tty) ? SP_TXEN : 0) | |
| 979 | (I_IXOFF(port->gs.tty) ? SP_RXEN : 0) | |
| 980 | (I_IXANY(port->gs.tty) ? SP_TANY : 0) | SP_DCEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 982 | sx_write_channel_byte(port, hi_break, |
| 983 | (I_IGNBRK(port->gs.tty) ? BR_IGN : 0 | |
| 984 | I_BRKINT(port->gs.tty) ? BR_INT : 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 986 | sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.tty)); |
| 987 | sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.tty)); |
| 988 | sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.tty)); |
| 989 | sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.tty)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | |
| 991 | sx_reconfigure_port(port); |
| 992 | |
| 993 | /* Tell line discipline whether we will do input cooking */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 994 | if (I_OTHER(port->gs.tty)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | clear_bit(TTY_HW_COOK_IN, &port->gs.tty->flags); |
| 996 | } else { |
| 997 | set_bit(TTY_HW_COOK_IN, &port->gs.tty->flags); |
| 998 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 999 | sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ", |
| 1000 | port->gs.tty->termios->c_iflag, I_OTHER(port->gs.tty)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1001 | |
| 1002 | /* Tell line discipline whether we will do output cooking. |
| 1003 | * If OPOST is set and no other output flags are set then we can do output |
| 1004 | * processing. Even if only *one* other flag in the O_OTHER group is set |
| 1005 | * we do cooking in software. |
| 1006 | */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1007 | if (O_OPOST(port->gs.tty) && !O_OTHER(port->gs.tty)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | set_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags); |
| 1009 | } else { |
| 1010 | clear_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags); |
| 1011 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1012 | sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n", |
| 1013 | port->gs.tty->termios->c_oflag, O_OTHER(port->gs.tty)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | /* port->c_dcd = sx_get_CD (port); */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1015 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1016 | return 0; |
| 1017 | } |
| 1018 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | /* ********************************************************************** * |
| 1020 | * the interrupt related routines * |
| 1021 | * ********************************************************************** */ |
| 1022 | |
| 1023 | /* Note: |
| 1024 | Other drivers use the macro "MIN" to calculate how much to copy. |
| 1025 | This has the disadvantage that it will evaluate parts twice. That's |
| 1026 | expensive when it's IO (and the compiler cannot optimize those away!). |
| 1027 | Moreover, I'm not sure that you're race-free. |
| 1028 | |
| 1029 | I assign a value, and then only allow the value to decrease. This |
| 1030 | is always safe. This makes the code a few lines longer, and you |
| 1031 | know I'm dead against that, but I think it is required in this |
| 1032 | case. */ |
| 1033 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1034 | static void sx_transmit_chars(struct sx_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | { |
| 1036 | int c; |
| 1037 | int tx_ip; |
| 1038 | int txroom; |
| 1039 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1040 | func_enter2(); |
| 1041 | sx_dprintk(SX_DEBUG_TRANSMIT, "Port %p: transmit %d chars\n", |
| 1042 | port, port->gs.xmit_cnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1044 | if (test_and_set_bit(SX_PORT_TRANSMIT_LOCK, &port->locks)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | return; |
| 1046 | } |
| 1047 | |
| 1048 | while (1) { |
| 1049 | c = port->gs.xmit_cnt; |
| 1050 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1051 | sx_dprintk(SX_DEBUG_TRANSMIT, "Copying %d ", c); |
| 1052 | tx_ip = sx_read_channel_byte(port, hi_txipos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | |
| 1054 | /* Took me 5 minutes to deduce this formula. |
| 1055 | Luckily it is literally in the manual in section 6.5.4.3.5 */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1056 | txroom = (sx_read_channel_byte(port, hi_txopos) - tx_ip - 1) & |
| 1057 | 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | |
| 1059 | /* Don't copy more bytes than there is room for in the buffer */ |
| 1060 | if (c > txroom) |
| 1061 | c = txroom; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1062 | sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, txroom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | |
| 1064 | /* Don't copy past the end of the hardware transmit buffer */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1065 | if (c > 0x100 - tx_ip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | c = 0x100 - tx_ip; |
| 1067 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1068 | sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, 0x100 - tx_ip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | |
| 1070 | /* Don't copy pas the end of the source buffer */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1071 | if (c > SERIAL_XMIT_SIZE - port->gs.xmit_tail) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | c = SERIAL_XMIT_SIZE - port->gs.xmit_tail; |
| 1073 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1074 | sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%ld) \n", |
| 1075 | c, SERIAL_XMIT_SIZE - port->gs.xmit_tail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1077 | /* If for one reason or another, we can't copy more data, we're |
| 1078 | done! */ |
| 1079 | if (c == 0) |
| 1080 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1082 | memcpy_toio(port->board->base + CHAN_OFFSET(port, hi_txbuf) + |
| 1083 | tx_ip, port->gs.xmit_buf + port->gs.xmit_tail, c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | |
| 1085 | /* Update the pointer in the card */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1086 | sx_write_channel_byte(port, hi_txipos, (tx_ip + c) & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | |
| 1088 | /* Update the kernel buffer end */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1089 | port->gs.xmit_tail = (port->gs.xmit_tail + c) & |
| 1090 | (SERIAL_XMIT_SIZE - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1091 | |
| 1092 | /* This one last. (this is essential) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1093 | It would allow others to start putting more data into the |
| 1094 | buffer! */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | port->gs.xmit_cnt -= c; |
| 1096 | } |
| 1097 | |
| 1098 | if (port->gs.xmit_cnt == 0) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1099 | sx_disable_tx_interrupts(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1100 | } |
| 1101 | |
| 1102 | if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.tty) { |
| 1103 | tty_wakeup(port->gs.tty); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1104 | sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n", |
| 1105 | port->gs.wakeup_chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1106 | } |
| 1107 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1108 | clear_bit(SX_PORT_TRANSMIT_LOCK, &port->locks); |
| 1109 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | } |
| 1111 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | /* Note the symmetry between receiving chars and transmitting them! |
| 1113 | Note: The kernel should have implemented both a receive buffer and |
| 1114 | a transmit buffer. */ |
| 1115 | |
| 1116 | /* Inlined: Called only once. Remove the inline when you add another call */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1117 | static inline void sx_receive_chars(struct sx_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | { |
| 1119 | int c; |
| 1120 | int rx_op; |
| 1121 | struct tty_struct *tty; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1122 | int copied = 0; |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 1123 | unsigned char *rp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1125 | func_enter2(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1126 | tty = port->gs.tty; |
| 1127 | while (1) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1128 | rx_op = sx_read_channel_byte(port, hi_rxopos); |
| 1129 | c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1131 | sx_dprintk(SX_DEBUG_RECEIVE, "rxop=%d, c = %d.\n", rx_op, c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | |
Marc Zyngier | d904ffd | 2006-02-27 12:08:00 +0100 | [diff] [blame] | 1133 | /* Don't copy past the end of the hardware receive buffer */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1134 | if (rx_op + c > 0x100) |
| 1135 | c = 0x100 - rx_op; |
Marc Zyngier | d904ffd | 2006-02-27 12:08:00 +0100 | [diff] [blame] | 1136 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1137 | sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c); |
Marc Zyngier | d904ffd | 2006-02-27 12:08:00 +0100 | [diff] [blame] | 1138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1139 | /* Don't copy more bytes than there is room for in the buffer */ |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 1140 | |
| 1141 | c = tty_prepare_flip_string(tty, &rp, c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1143 | sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1145 | /* If for one reason or another, we can't copy more data, we're done! */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1146 | if (c == 0) |
| 1147 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1149 | sx_dprintk(SX_DEBUG_RECEIVE, "Copying over %d chars. First is " |
| 1150 | "%d at %lx\n", c, read_sx_byte(port->board, |
| 1151 | CHAN_OFFSET(port, hi_rxbuf) + rx_op), |
| 1152 | CHAN_OFFSET(port, hi_rxbuf)); |
| 1153 | memcpy_fromio(rp, port->board->base + |
| 1154 | CHAN_OFFSET(port, hi_rxbuf) + rx_op, c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | |
| 1156 | /* This one last. ( Not essential.) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1157 | It allows the card to start putting more data into the |
| 1158 | buffer! |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | Update the pointer in the card */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1160 | sx_write_channel_byte(port, hi_rxopos, (rx_op + c) & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | |
| 1162 | copied += c; |
| 1163 | } |
| 1164 | if (copied) { |
| 1165 | struct timeval tv; |
| 1166 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1167 | do_gettimeofday(&tv); |
| 1168 | sx_dprintk(SX_DEBUG_RECEIVE, "pushing flipq port %d (%3d " |
| 1169 | "chars): %d.%06d (%d/%d)\n", port->line, |
| 1170 | copied, (int)(tv.tv_sec % 60), (int)tv.tv_usec, |
| 1171 | tty->raw, tty->real_raw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1173 | /* Tell the rest of the system the news. Great news. New |
| 1174 | characters! */ |
| 1175 | tty_flip_buffer_push(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | /* tty_schedule_flip (tty); */ |
| 1177 | } |
| 1178 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1179 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | } |
| 1181 | |
| 1182 | /* Inlined: it is called only once. Remove the inline if you add another |
| 1183 | call */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1184 | static inline void sx_check_modem_signals(struct sx_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | { |
| 1186 | int hi_state; |
| 1187 | int c_dcd; |
| 1188 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1189 | hi_state = sx_read_channel_byte(port, hi_state); |
| 1190 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Checking modem signals (%d/%d)\n", |
| 1191 | port->c_dcd, sx_get_CD(port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | |
| 1193 | if (hi_state & ST_BREAK) { |
| 1194 | hi_state &= ~ST_BREAK; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1195 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a break.\n"); |
| 1196 | sx_write_channel_byte(port, hi_state, hi_state); |
| 1197 | gs_got_break(&port->gs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | } |
| 1199 | if (hi_state & ST_DCD) { |
| 1200 | hi_state &= ~ST_DCD; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1201 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a DCD change.\n"); |
| 1202 | sx_write_channel_byte(port, hi_state, hi_state); |
| 1203 | c_dcd = sx_get_CD(port); |
| 1204 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD is now %d\n", c_dcd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | if (c_dcd != port->c_dcd) { |
| 1206 | port->c_dcd = c_dcd; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1207 | if (sx_get_CD(port)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | /* DCD went UP */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1209 | if ((sx_read_channel_byte(port, hi_hstat) != |
| 1210 | HS_IDLE_CLOSED) && |
| 1211 | !(port->gs.tty->termios-> |
| 1212 | c_cflag & CLOCAL)) { |
| 1213 | /* Are we blocking in open? */ |
| 1214 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " |
| 1215 | "active, unblocking open\n"); |
| 1216 | wake_up_interruptible(&port->gs. |
| 1217 | open_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1219 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " |
| 1220 | "raised. Ignoring.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | } |
| 1222 | } else { |
| 1223 | /* DCD went down! */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1224 | if (!(port->gs.tty->termios->c_cflag & CLOCAL)){ |
| 1225 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " |
| 1226 | "dropped. hanging up....\n"); |
| 1227 | tty_hangup(port->gs.tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1229 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " |
| 1230 | "dropped. ignoring.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1231 | } |
| 1232 | } |
| 1233 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1234 | sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Hmmm. card told us " |
| 1235 | "DCD changed, but it didn't.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | } |
| 1237 | } |
| 1238 | } |
| 1239 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | /* This is what an interrupt routine should look like. |
| 1241 | * Small, elegant, clear. |
| 1242 | */ |
| 1243 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1244 | static irqreturn_t sx_interrupt(int irq, void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1245 | { |
| 1246 | struct sx_board *board = ptr; |
| 1247 | struct sx_port *port; |
| 1248 | int i; |
| 1249 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1250 | func_enter(); |
| 1251 | sx_dprintk(SX_DEBUG_FLOW, "sx: enter sx_interrupt (%d/%d)\n", irq, |
| 1252 | board->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | |
| 1254 | /* AAargh! The order in which to do these things is essential and |
| 1255 | not trivial. |
| 1256 | |
| 1257 | - Rate limit goes before "recursive". Otherwise a series of |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1258 | recursive calls will hang the machine in the interrupt routine. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | |
| 1260 | - hardware twiddling goes before "recursive". Otherwise when we |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1261 | poll the card, and a recursive interrupt happens, we won't |
| 1262 | ack the card, so it might keep on interrupting us. (especially |
| 1263 | level sensitive interrupt systems like PCI). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1264 | |
| 1265 | - Rate limit goes before hardware twiddling. Otherwise we won't |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1266 | catch a card that has gone bonkers. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1267 | |
| 1268 | - The "initialized" test goes after the hardware twiddling. Otherwise |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1269 | the card will stick us in the interrupt routine again. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | |
| 1271 | - The initialized test goes before recursive. |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1272 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | |
| 1274 | #ifdef IRQ_RATE_LIMIT |
| 1275 | /* Aaargh! I'm ashamed. This costs more lines-of-code than the |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1276 | actual interrupt routine!. (Well, used to when I wrote that |
| 1277 | comment) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | { |
| 1279 | static int lastjif; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1280 | static int nintr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | |
| 1282 | if (lastjif == jiffies) { |
| 1283 | if (++nintr > IRQ_RATE_LIMIT) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1284 | free_irq(board->irq, board); |
| 1285 | printk(KERN_ERR "sx: Too many interrupts. " |
| 1286 | "Turning off interrupt %d.\n", |
| 1287 | board->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1288 | } |
| 1289 | } else { |
| 1290 | lastjif = jiffies; |
| 1291 | nintr = 0; |
| 1292 | } |
| 1293 | } |
| 1294 | #endif |
| 1295 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | if (board->irq == irq) { |
| 1297 | /* Tell the card we've noticed the interrupt. */ |
| 1298 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1299 | sx_write_board_word(board, cc_int_pending, 0); |
| 1300 | if (IS_SX_BOARD(board)) { |
| 1301 | write_sx_byte(board, SX_RESET_IRQ, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1302 | } else if (IS_EISA_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1303 | inb(board->eisa_base + 0xc03); |
| 1304 | write_sx_word(board, 8, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1305 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1306 | write_sx_byte(board, SI2_ISA_INTCLEAR, |
| 1307 | SI2_ISA_INTCLEAR_CLEAR); |
| 1308 | write_sx_byte(board, SI2_ISA_INTCLEAR, |
| 1309 | SI2_ISA_INTCLEAR_SET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1310 | } |
| 1311 | } |
| 1312 | |
| 1313 | if (!sx_initialized) |
| 1314 | return IRQ_HANDLED; |
| 1315 | if (!(board->flags & SX_BOARD_INITIALIZED)) |
| 1316 | return IRQ_HANDLED; |
| 1317 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1318 | if (test_and_set_bit(SX_BOARD_INTR_LOCK, &board->locks)) { |
| 1319 | printk(KERN_ERR "Recursive interrupt! (%d)\n", board->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | return IRQ_HANDLED; |
| 1321 | } |
| 1322 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1323 | for (i = 0; i < board->nports; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1324 | port = &board->ports[i]; |
| 1325 | if (port->gs.flags & GS_ACTIVE) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1326 | if (sx_read_channel_byte(port, hi_state)) { |
| 1327 | sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: " |
| 1328 | "modem signal change?... \n",i); |
| 1329 | sx_check_modem_signals(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1330 | } |
| 1331 | if (port->gs.xmit_cnt) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1332 | sx_transmit_chars(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | } |
| 1334 | if (!(port->gs.flags & SX_RX_THROTTLE)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1335 | sx_receive_chars(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | } |
| 1337 | } |
| 1338 | } |
| 1339 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1340 | clear_bit(SX_BOARD_INTR_LOCK, &board->locks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1341 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1342 | sx_dprintk(SX_DEBUG_FLOW, "sx: exit sx_interrupt (%d/%d)\n", irq, |
| 1343 | board->irq); |
| 1344 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1345 | return IRQ_HANDLED; |
| 1346 | } |
| 1347 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1348 | static void sx_pollfunc(unsigned long data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1350 | struct sx_board *board = (struct sx_board *)data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1352 | func_enter(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1354 | sx_interrupt(0, board); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | |
| 1356 | init_timer(&board->timer); |
| 1357 | |
| 1358 | board->timer.expires = jiffies + sx_poll; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1359 | add_timer(&board->timer); |
| 1360 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | } |
| 1362 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | /* ********************************************************************** * |
| 1364 | * Here are the routines that actually * |
| 1365 | * interface with the generic_serial driver * |
| 1366 | * ********************************************************************** */ |
| 1367 | |
| 1368 | /* Ehhm. I don't know how to fiddle with interrupts on the SX card. --REW */ |
| 1369 | /* Hmm. Ok I figured it out. You don't. */ |
| 1370 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1371 | static void sx_disable_tx_interrupts(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1373 | struct sx_port *port = ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1374 | func_enter2(); |
| 1375 | |
| 1376 | port->gs.flags &= ~GS_TX_INTEN; |
| 1377 | |
| 1378 | func_exit(); |
| 1379 | } |
| 1380 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1381 | static void sx_enable_tx_interrupts(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1382 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1383 | struct sx_port *port = ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | int data_in_buffer; |
| 1385 | func_enter2(); |
| 1386 | |
| 1387 | /* First transmit the characters that we're supposed to */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1388 | sx_transmit_chars(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1389 | |
| 1390 | /* The sx card will never interrupt us if we don't fill the buffer |
| 1391 | past 25%. So we keep considering interrupts off if that's the case. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1392 | data_in_buffer = (sx_read_channel_byte(port, hi_txipos) - |
| 1393 | sx_read_channel_byte(port, hi_txopos)) & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1394 | |
| 1395 | /* XXX Must be "HIGH_WATER" for SI card according to doc. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1396 | if (data_in_buffer < LOW_WATER) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | port->gs.flags &= ~GS_TX_INTEN; |
| 1398 | |
| 1399 | func_exit(); |
| 1400 | } |
| 1401 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1402 | static void sx_disable_rx_interrupts(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1403 | { |
| 1404 | /* struct sx_port *port = ptr; */ |
| 1405 | func_enter(); |
| 1406 | |
| 1407 | func_exit(); |
| 1408 | } |
| 1409 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1410 | static void sx_enable_rx_interrupts(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1411 | { |
| 1412 | /* struct sx_port *port = ptr; */ |
| 1413 | func_enter(); |
| 1414 | |
| 1415 | func_exit(); |
| 1416 | } |
| 1417 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | /* Jeez. Isn't this simple? */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1419 | static int sx_get_CD(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1420 | { |
| 1421 | struct sx_port *port = ptr; |
| 1422 | func_enter2(); |
| 1423 | |
| 1424 | func_exit(); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1425 | return ((sx_read_channel_byte(port, hi_ip) & IP_DCD) != 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1426 | } |
| 1427 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | /* Jeez. Isn't this simple? */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1429 | static int sx_chars_in_buffer(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1430 | { |
| 1431 | struct sx_port *port = ptr; |
| 1432 | func_enter2(); |
| 1433 | |
| 1434 | func_exit(); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1435 | return ((sx_read_channel_byte(port, hi_txipos) - |
| 1436 | sx_read_channel_byte(port, hi_txopos)) & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1437 | } |
| 1438 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1439 | static void sx_shutdown_port(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1441 | struct sx_port *port = ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | |
| 1443 | func_enter(); |
| 1444 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1445 | port->gs.flags &= ~GS_ACTIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1446 | if (port->gs.tty && (port->gs.tty->termios->c_cflag & HUPCL)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1447 | sx_setsignals(port, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1448 | sx_reconfigure_port(port); |
| 1449 | } |
| 1450 | |
| 1451 | func_exit(); |
| 1452 | } |
| 1453 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | /* ********************************************************************** * |
| 1455 | * Here are the routines that actually * |
| 1456 | * interface with the rest of the system * |
| 1457 | * ********************************************************************** */ |
| 1458 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1459 | static int sx_open(struct tty_struct *tty, struct file *filp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | { |
| 1461 | struct sx_port *port; |
| 1462 | int retval, line; |
| 1463 | unsigned long flags; |
| 1464 | |
| 1465 | func_enter(); |
| 1466 | |
| 1467 | if (!sx_initialized) { |
| 1468 | return -EIO; |
| 1469 | } |
| 1470 | |
| 1471 | line = tty->index; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1472 | sx_dprintk(SX_DEBUG_OPEN, "%d: opening line %d. tty=%p ctty=%p, " |
| 1473 | "np=%d)\n", current->pid, line, tty, |
| 1474 | current->signal->tty, sx_nports); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | |
| 1476 | if ((line < 0) || (line >= SX_NPORTS) || (line >= sx_nports)) |
| 1477 | return -ENODEV; |
| 1478 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1479 | port = &sx_ports[line]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | port->c_dcd = 0; /* Make sure that the first interrupt doesn't detect a |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1481 | 1 -> 0 transition. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1482 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1483 | sx_dprintk(SX_DEBUG_OPEN, "port = %p c_dcd = %d\n", port, port->c_dcd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | |
| 1485 | spin_lock_irqsave(&port->gs.driver_lock, flags); |
| 1486 | |
| 1487 | tty->driver_data = port; |
| 1488 | port->gs.tty = tty; |
| 1489 | port->gs.count++; |
| 1490 | spin_unlock_irqrestore(&port->gs.driver_lock, flags); |
| 1491 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1492 | sx_dprintk(SX_DEBUG_OPEN, "starting port\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1493 | |
| 1494 | /* |
| 1495 | * Start up serial port |
| 1496 | */ |
| 1497 | retval = gs_init_port(&port->gs); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1498 | sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | if (retval) { |
| 1500 | port->gs.count--; |
| 1501 | return retval; |
| 1502 | } |
| 1503 | |
| 1504 | port->gs.flags |= GS_ACTIVE; |
| 1505 | if (port->gs.count <= 1) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1506 | sx_setsignals(port, 1, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1507 | |
| 1508 | #if 0 |
| 1509 | if (sx_debug & SX_DEBUG_OPEN) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1510 | my_hd(port, sizeof(*port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | #else |
| 1512 | if (sx_debug & SX_DEBUG_OPEN) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1513 | my_hd_io(port->board->base + port->ch_base, sizeof(*port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | #endif |
| 1515 | |
| 1516 | if (port->gs.count <= 1) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1517 | if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) { |
| 1518 | printk(KERN_ERR "sx: Card didn't respond to LOPEN " |
| 1519 | "command.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | spin_lock_irqsave(&port->gs.driver_lock, flags); |
| 1521 | port->gs.count--; |
| 1522 | spin_unlock_irqrestore(&port->gs.driver_lock, flags); |
| 1523 | return -EIO; |
| 1524 | } |
| 1525 | } |
| 1526 | |
| 1527 | retval = gs_block_til_ready(port, filp); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1528 | sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n", |
| 1529 | retval, port->gs.count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1530 | |
| 1531 | if (retval) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1532 | /* |
| 1533 | * Don't lower gs.count here because sx_close() will be called later |
| 1534 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1535 | |
| 1536 | return retval; |
| 1537 | } |
| 1538 | /* tty->low_latency = 1; */ |
| 1539 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1540 | port->c_dcd = sx_get_CD(port); |
| 1541 | sx_dprintk(SX_DEBUG_OPEN, "at open: cd=%d\n", port->c_dcd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | |
| 1543 | func_exit(); |
| 1544 | return 0; |
| 1545 | |
| 1546 | } |
| 1547 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1548 | static void sx_close(void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1549 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1550 | struct sx_port *port = ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1551 | /* Give the port 5 seconds to close down. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1552 | int to = 5 * HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1554 | func_enter(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1555 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1556 | sx_setsignals(port, 0, 0); |
| 1557 | sx_reconfigure_port(port); |
| 1558 | sx_send_command(port, HS_CLOSE, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1559 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1560 | while (to-- && (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | if (msleep_interruptible(10)) |
| 1562 | break; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1563 | if (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED) { |
| 1564 | if (sx_send_command(port, HS_FORCE_CLOSED, -1, HS_IDLE_CLOSED) |
| 1565 | != 1) { |
| 1566 | printk(KERN_ERR "sx: sent the force_close command, but " |
| 1567 | "card didn't react\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1568 | } else |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1569 | sx_dprintk(SX_DEBUG_CLOSE, "sent the force_close " |
| 1570 | "command.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1571 | } |
| 1572 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1573 | sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n", |
| 1574 | 5 * HZ - to - 1, port->gs.count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1575 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1576 | if (port->gs.count) { |
| 1577 | sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n", |
| 1578 | port->gs.count); |
| 1579 | /*printk("%s SETTING port count to zero: %p count: %d\n", |
| 1580 | __FUNCTION__, port, port->gs.count); |
| 1581 | port->gs.count = 0;*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | } |
| 1583 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1584 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1585 | } |
| 1586 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1587 | /* This is relatively thorough. But then again it is only 20 lines. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1588 | #define MARCHUP for (i = min; i < max; i++) |
| 1589 | #define MARCHDOWN for (i = max - 1; i >= min; i--) |
| 1590 | #define W0 write_sx_byte(board, i, 0x55) |
| 1591 | #define W1 write_sx_byte(board, i, 0xaa) |
| 1592 | #define R0 if (read_sx_byte(board, i) != 0x55) return 1 |
| 1593 | #define R1 if (read_sx_byte(board, i) != 0xaa) return 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1594 | |
| 1595 | /* This memtest takes a human-noticable time. You normally only do it |
| 1596 | once a boot, so I guess that it is worth it. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1597 | static int do_memtest(struct sx_board *board, int min, int max) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | { |
| 1599 | int i; |
| 1600 | |
| 1601 | /* This is a marchb. Theoretically, marchb catches much more than |
| 1602 | simpler tests. In practise, the longer test just catches more |
| 1603 | intermittent errors. -- REW |
| 1604 | (For the theory behind memory testing see: |
| 1605 | Testing Semiconductor Memories by A.J. van de Goor.) */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1606 | MARCHUP { |
| 1607 | W0; |
| 1608 | } |
| 1609 | MARCHUP { |
| 1610 | R0; |
| 1611 | W1; |
| 1612 | R1; |
| 1613 | W0; |
| 1614 | R0; |
| 1615 | W1; |
| 1616 | } |
| 1617 | MARCHUP { |
| 1618 | R1; |
| 1619 | W0; |
| 1620 | W1; |
| 1621 | } |
| 1622 | MARCHDOWN { |
| 1623 | R1; |
| 1624 | W0; |
| 1625 | W1; |
| 1626 | W0; |
| 1627 | } |
| 1628 | MARCHDOWN { |
| 1629 | R0; |
| 1630 | W1; |
| 1631 | W0; |
| 1632 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1633 | |
| 1634 | return 0; |
| 1635 | } |
| 1636 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | #undef MARCHUP |
| 1638 | #undef MARCHDOWN |
| 1639 | #undef W0 |
| 1640 | #undef W1 |
| 1641 | #undef R0 |
| 1642 | #undef R1 |
| 1643 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1644 | #define MARCHUP for (i = min; i < max; i += 2) |
| 1645 | #define MARCHDOWN for (i = max - 1; i >= min; i -= 2) |
| 1646 | #define W0 write_sx_word(board, i, 0x55aa) |
| 1647 | #define W1 write_sx_word(board, i, 0xaa55) |
| 1648 | #define R0 if (read_sx_word(board, i) != 0x55aa) return 1 |
| 1649 | #define R1 if (read_sx_word(board, i) != 0xaa55) return 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | |
| 1651 | #if 0 |
| 1652 | /* This memtest takes a human-noticable time. You normally only do it |
| 1653 | once a boot, so I guess that it is worth it. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1654 | static int do_memtest_w(struct sx_board *board, int min, int max) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | { |
| 1656 | int i; |
| 1657 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1658 | MARCHUP { |
| 1659 | W0; |
| 1660 | } |
| 1661 | MARCHUP { |
| 1662 | R0; |
| 1663 | W1; |
| 1664 | R1; |
| 1665 | W0; |
| 1666 | R0; |
| 1667 | W1; |
| 1668 | } |
| 1669 | MARCHUP { |
| 1670 | R1; |
| 1671 | W0; |
| 1672 | W1; |
| 1673 | } |
| 1674 | MARCHDOWN { |
| 1675 | R1; |
| 1676 | W0; |
| 1677 | W1; |
| 1678 | W0; |
| 1679 | } |
| 1680 | MARCHDOWN { |
| 1681 | R0; |
| 1682 | W1; |
| 1683 | W0; |
| 1684 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1685 | |
| 1686 | return 0; |
| 1687 | } |
| 1688 | #endif |
| 1689 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1690 | static int sx_fw_ioctl(struct inode *inode, struct file *filp, |
| 1691 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1692 | { |
| 1693 | int rc = 0; |
| 1694 | int __user *descr = (int __user *)arg; |
| 1695 | int i; |
| 1696 | static struct sx_board *board = NULL; |
| 1697 | int nbytes, offset; |
| 1698 | unsigned long data; |
| 1699 | char *tmp; |
| 1700 | |
| 1701 | func_enter(); |
| 1702 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1703 | #if 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | /* Removed superuser check: Sysops can use the permissions on the device |
| 1705 | file to restrict access. Recommendation: Root only. (root.root 600) */ |
| 1706 | if (!capable(CAP_SYS_ADMIN)) { |
| 1707 | return -EPERM; |
| 1708 | } |
| 1709 | #endif |
| 1710 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1711 | sx_dprintk(SX_DEBUG_FIRMWARE, "IOCTL %x: %lx\n", cmd, arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1712 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1713 | if (!board) |
| 1714 | board = &boards[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1715 | if (board->flags & SX_BOARD_PRESENT) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1716 | sx_dprintk(SX_DEBUG_FIRMWARE, "Board present! (%x)\n", |
| 1717 | board->flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1718 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1719 | sx_dprintk(SX_DEBUG_FIRMWARE, "Board not present! (%x) all:", |
| 1720 | board->flags); |
| 1721 | for (i = 0; i < SX_NBOARDS; i++) |
| 1722 | sx_dprintk(SX_DEBUG_FIRMWARE, "<%x> ", boards[i].flags); |
| 1723 | sx_dprintk(SX_DEBUG_FIRMWARE, "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1724 | return -EIO; |
| 1725 | } |
| 1726 | |
| 1727 | switch (cmd) { |
| 1728 | case SXIO_SET_BOARD: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1729 | sx_dprintk(SX_DEBUG_FIRMWARE, "set board to %ld\n", arg); |
| 1730 | if (arg >= SX_NBOARDS) |
| 1731 | return -EIO; |
| 1732 | sx_dprintk(SX_DEBUG_FIRMWARE, "not out of range\n"); |
| 1733 | if (!(boards[arg].flags & SX_BOARD_PRESENT)) |
| 1734 | return -EIO; |
| 1735 | sx_dprintk(SX_DEBUG_FIRMWARE, ".. and present!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | board = &boards[arg]; |
| 1737 | break; |
| 1738 | case SXIO_GET_TYPE: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1739 | rc = -ENOENT; /* If we manage to miss one, return error. */ |
| 1740 | if (IS_SX_BOARD(board)) |
| 1741 | rc = SX_TYPE_SX; |
| 1742 | if (IS_CF_BOARD(board)) |
| 1743 | rc = SX_TYPE_CF; |
| 1744 | if (IS_SI_BOARD(board)) |
| 1745 | rc = SX_TYPE_SI; |
| 1746 | if (IS_SI1_BOARD(board)) |
| 1747 | rc = SX_TYPE_SI; |
| 1748 | if (IS_EISA_BOARD(board)) |
| 1749 | rc = SX_TYPE_SI; |
| 1750 | sx_dprintk(SX_DEBUG_FIRMWARE, "returning type= %d\n", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | break; |
| 1752 | case SXIO_DO_RAMTEST: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1753 | if (sx_initialized) /* Already initialized: better not ramtest the board. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | return -EPERM; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1755 | if (IS_SX_BOARD(board)) { |
| 1756 | rc = do_memtest(board, 0, 0x7000); |
| 1757 | if (!rc) |
| 1758 | rc = do_memtest(board, 0, 0x7000); |
| 1759 | /*if (!rc) rc = do_memtest_w (board, 0, 0x7000); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1760 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1761 | rc = do_memtest(board, 0, 0x7ff8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1762 | /* if (!rc) rc = do_memtest_w (board, 0, 0x7ff8); */ |
| 1763 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1764 | sx_dprintk(SX_DEBUG_FIRMWARE, "returning memtest result= %d\n", |
| 1765 | rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1766 | break; |
| 1767 | case SXIO_DOWNLOAD: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1768 | if (sx_initialized) /* Already initialized */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1769 | return -EEXIST; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1770 | if (!sx_reset(board)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1771 | return -EIO; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1772 | sx_dprintk(SX_DEBUG_INIT, "reset the board...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1773 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1774 | tmp = kmalloc(SX_CHUNK_SIZE, GFP_USER); |
| 1775 | if (!tmp) |
| 1776 | return -ENOMEM; |
| 1777 | get_user(nbytes, descr++); |
| 1778 | get_user(offset, descr++); |
| 1779 | get_user(data, descr++); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | while (nbytes && data) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1781 | for (i = 0; i < nbytes; i += SX_CHUNK_SIZE) { |
| 1782 | if (copy_from_user(tmp, (char __user *)data + i, |
| 1783 | (i + SX_CHUNK_SIZE > nbytes) ? |
| 1784 | nbytes - i : SX_CHUNK_SIZE)) { |
| 1785 | kfree(tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1786 | return -EFAULT; |
| 1787 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1788 | memcpy_toio(board->base2 + offset + i, tmp, |
| 1789 | (i + SX_CHUNK_SIZE > nbytes) ? |
| 1790 | nbytes - i : SX_CHUNK_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1791 | } |
| 1792 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1793 | get_user(nbytes, descr++); |
| 1794 | get_user(offset, descr++); |
| 1795 | get_user(data, descr++); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1797 | kfree(tmp); |
| 1798 | sx_nports += sx_init_board(board); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | rc = sx_nports; |
| 1800 | break; |
| 1801 | case SXIO_INIT: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1802 | if (sx_initialized) /* Already initialized */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1803 | return -EEXIST; |
| 1804 | /* This is not allowed until all boards are initialized... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1805 | for (i = 0; i < SX_NBOARDS; i++) { |
| 1806 | if ((boards[i].flags & SX_BOARD_PRESENT) && |
| 1807 | !(boards[i].flags & SX_BOARD_INITIALIZED)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | return -EIO; |
| 1809 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1810 | for (i = 0; i < SX_NBOARDS; i++) |
| 1811 | if (!(boards[i].flags & SX_BOARD_PRESENT)) |
| 1812 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1814 | sx_dprintk(SX_DEBUG_FIRMWARE, "initing portstructs, %d boards, " |
| 1815 | "%d channels, first board: %d ports\n", |
| 1816 | i, sx_nports, boards[0].nports); |
| 1817 | rc = sx_init_portstructs(i, sx_nports); |
| 1818 | sx_init_drivers(); |
| 1819 | if (rc >= 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1820 | sx_initialized++; |
| 1821 | break; |
| 1822 | case SXIO_SETDEBUG: |
| 1823 | sx_debug = arg; |
| 1824 | break; |
| 1825 | case SXIO_GETDEBUG: |
| 1826 | rc = sx_debug; |
| 1827 | break; |
| 1828 | case SXIO_GETGSDEBUG: |
| 1829 | case SXIO_SETGSDEBUG: |
| 1830 | rc = -EINVAL; |
| 1831 | break; |
| 1832 | case SXIO_GETNPORTS: |
| 1833 | rc = sx_nports; |
| 1834 | break; |
| 1835 | default: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1836 | printk(KERN_WARNING "Unknown ioctl on firmware device (%x).\n", |
| 1837 | cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1838 | break; |
| 1839 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1840 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | return rc; |
| 1842 | } |
| 1843 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1844 | static void sx_break(struct tty_struct *tty, int flag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1845 | { |
| 1846 | struct sx_port *port = tty->driver_data; |
| 1847 | int rv; |
| 1848 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1849 | func_enter(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1851 | if (flag) |
| 1852 | rv = sx_send_command(port, HS_START, -1, HS_IDLE_BREAK); |
| 1853 | else |
| 1854 | rv = sx_send_command(port, HS_STOP, -1, HS_IDLE_OPEN); |
| 1855 | if (rv != 1) |
| 1856 | printk(KERN_ERR "sx: couldn't send break (%x).\n", |
| 1857 | read_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1858 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1859 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1860 | } |
| 1861 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1862 | static int sx_tiocmget(struct tty_struct *tty, struct file *file) |
| 1863 | { |
| 1864 | struct sx_port *port = tty->driver_data; |
| 1865 | return sx_getsignals(port); |
| 1866 | } |
| 1867 | |
| 1868 | static int sx_tiocmset(struct tty_struct *tty, struct file *file, |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1869 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1870 | { |
| 1871 | struct sx_port *port = tty->driver_data; |
| 1872 | int rts = -1, dtr = -1; |
| 1873 | |
| 1874 | if (set & TIOCM_RTS) |
| 1875 | rts = 1; |
| 1876 | if (set & TIOCM_DTR) |
| 1877 | dtr = 1; |
| 1878 | if (clear & TIOCM_RTS) |
| 1879 | rts = 0; |
| 1880 | if (clear & TIOCM_DTR) |
| 1881 | dtr = 0; |
| 1882 | |
| 1883 | sx_setsignals(port, dtr, rts); |
| 1884 | sx_reconfigure_port(port); |
| 1885 | return 0; |
| 1886 | } |
| 1887 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1888 | static int sx_ioctl(struct tty_struct *tty, struct file *filp, |
| 1889 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1890 | { |
| 1891 | int rc; |
| 1892 | struct sx_port *port = tty->driver_data; |
| 1893 | void __user *argp = (void __user *)arg; |
| 1894 | int ival; |
| 1895 | |
| 1896 | /* func_enter2(); */ |
| 1897 | |
| 1898 | rc = 0; |
| 1899 | switch (cmd) { |
| 1900 | case TIOCGSOFTCAR: |
| 1901 | rc = put_user(((tty->termios->c_cflag & CLOCAL) ? 1 : 0), |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1902 | (unsigned __user *)argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1903 | break; |
| 1904 | case TIOCSSOFTCAR: |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1905 | if ((rc = get_user(ival, (unsigned __user *)argp)) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1906 | tty->termios->c_cflag = |
| 1907 | (tty->termios->c_cflag & ~CLOCAL) | |
| 1908 | (ival ? CLOCAL : 0); |
| 1909 | } |
| 1910 | break; |
| 1911 | case TIOCGSERIAL: |
| 1912 | rc = gs_getserial(&port->gs, argp); |
| 1913 | break; |
| 1914 | case TIOCSSERIAL: |
| 1915 | rc = gs_setserial(&port->gs, argp); |
| 1916 | break; |
| 1917 | default: |
| 1918 | rc = -ENOIOCTLCMD; |
| 1919 | break; |
| 1920 | } |
| 1921 | |
| 1922 | /* func_exit(); */ |
| 1923 | return rc; |
| 1924 | } |
| 1925 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1926 | /* The throttle/unthrottle scheme for the Specialix card is different |
| 1927 | * from other drivers and deserves some explanation. |
| 1928 | * The Specialix hardware takes care of XON/XOFF |
| 1929 | * and CTS/RTS flow control itself. This means that all we have to |
| 1930 | * do when signalled by the upper tty layer to throttle/unthrottle is |
| 1931 | * to make a note of it here. When we come to read characters from the |
| 1932 | * rx buffers on the card (sx_receive_chars()) we look to see if the |
| 1933 | * upper layer can accept more (as noted here in sx_rx_throt[]). |
| 1934 | * If it can't we simply don't remove chars from the cards buffer. |
| 1935 | * When the tty layer can accept chars, we again note that here and when |
| 1936 | * sx_receive_chars() is called it will remove them from the cards buffer. |
| 1937 | * The card will notice that a ports buffer has drained below some low |
| 1938 | * water mark and will unflow control the line itself, using whatever |
| 1939 | * flow control scheme is in use for that port. -- Simon Allen |
| 1940 | */ |
| 1941 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1942 | static void sx_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1943 | { |
| 1944 | struct sx_port *port = (struct sx_port *)tty->driver_data; |
| 1945 | |
| 1946 | func_enter2(); |
| 1947 | /* If the port is using any type of input flow |
| 1948 | * control then throttle the port. |
| 1949 | */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1950 | if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1951 | port->gs.flags |= SX_RX_THROTTLE; |
| 1952 | } |
| 1953 | func_exit(); |
| 1954 | } |
| 1955 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1956 | static void sx_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1957 | { |
| 1958 | struct sx_port *port = (struct sx_port *)tty->driver_data; |
| 1959 | |
| 1960 | func_enter2(); |
| 1961 | /* Always unthrottle even if flow control is not enabled on |
| 1962 | * this port in case we disabled flow control while the port |
| 1963 | * was throttled |
| 1964 | */ |
| 1965 | port->gs.flags &= ~SX_RX_THROTTLE; |
| 1966 | func_exit(); |
| 1967 | return; |
| 1968 | } |
| 1969 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1970 | /* ********************************************************************** * |
| 1971 | * Here are the initialization routines. * |
| 1972 | * ********************************************************************** */ |
| 1973 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1974 | static int sx_init_board(struct sx_board *board) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | { |
| 1976 | int addr; |
| 1977 | int chans; |
| 1978 | int type; |
| 1979 | |
| 1980 | func_enter(); |
| 1981 | |
| 1982 | /* This is preceded by downloading the download code. */ |
| 1983 | |
| 1984 | board->flags |= SX_BOARD_INITIALIZED; |
| 1985 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1986 | if (read_sx_byte(board, 0)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1987 | /* CF boards may need this. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1988 | write_sx_byte(board, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1989 | |
| 1990 | /* This resets the processor again, to make sure it didn't do any |
| 1991 | foolish things while we were downloading the image */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1992 | if (!sx_reset(board)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1993 | return 0; |
| 1994 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 1995 | sx_start_board(board); |
| 1996 | udelay(10); |
| 1997 | if (!sx_busy_wait_neq(board, 0, 0xff, 0)) { |
| 1998 | printk(KERN_ERR "sx: Ooops. Board won't initialize.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | return 0; |
| 2000 | } |
| 2001 | |
| 2002 | /* Ok. So now the processor on the card is running. It gathered |
| 2003 | some info for us... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2004 | sx_dprintk(SX_DEBUG_INIT, "The sxcard structure:\n"); |
| 2005 | if (sx_debug & SX_DEBUG_INIT) |
| 2006 | my_hd_io(board->base, 0x10); |
| 2007 | sx_dprintk(SX_DEBUG_INIT, "the first sx_module structure:\n"); |
| 2008 | if (sx_debug & SX_DEBUG_INIT) |
| 2009 | my_hd_io(board->base + 0x80, 0x30); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2010 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2011 | sx_dprintk(SX_DEBUG_INIT, "init_status: %x, %dk memory, firmware " |
| 2012 | "V%x.%02x,\n", |
| 2013 | read_sx_byte(board, 0), read_sx_byte(board, 1), |
| 2014 | read_sx_byte(board, 5), read_sx_byte(board, 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2015 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2016 | if (read_sx_byte(board, 0) == 0xff) { |
| 2017 | printk(KERN_INFO "sx: No modules found. Sorry.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2018 | board->nports = 0; |
| 2019 | return 0; |
| 2020 | } |
| 2021 | |
| 2022 | chans = 0; |
| 2023 | |
| 2024 | if (IS_SX_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2025 | sx_write_board_word(board, cc_int_count, sx_maxints); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2026 | } else { |
| 2027 | if (sx_maxints) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2028 | sx_write_board_word(board, cc_int_count, |
| 2029 | SI_PROCESSOR_CLOCK / 8 / sx_maxints); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2030 | } |
| 2031 | |
| 2032 | /* grab the first module type... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2033 | /* board->ta_type = mod_compat_type (read_sx_byte (board, 0x80 + 0x08)); */ |
| 2034 | board->ta_type = mod_compat_type(sx_read_module_byte(board, 0x80, |
| 2035 | mc_chip)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2036 | |
| 2037 | /* XXX byteorder */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2038 | for (addr = 0x80; addr != 0; addr = read_sx_word(board, addr) & 0x7fff){ |
| 2039 | type = sx_read_module_byte(board, addr, mc_chip); |
| 2040 | sx_dprintk(SX_DEBUG_INIT, "Module at %x: %d channels\n", |
| 2041 | addr, read_sx_byte(board, addr + 2)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2043 | chans += sx_read_module_byte(board, addr, mc_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2044 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2045 | sx_dprintk(SX_DEBUG_INIT, "module is an %s, which has %s/%s " |
| 2046 | "panels\n", |
| 2047 | mod_type_s(type), |
| 2048 | pan_type_s(sx_read_module_byte(board, addr, |
| 2049 | mc_mods) & 0xf), |
| 2050 | pan_type_s(sx_read_module_byte(board, addr, |
| 2051 | mc_mods) >> 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2052 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2053 | sx_dprintk(SX_DEBUG_INIT, "CD1400 versions: %x/%x, ASIC " |
| 2054 | "version: %x\n", |
| 2055 | sx_read_module_byte(board, addr, mc_rev1), |
| 2056 | sx_read_module_byte(board, addr, mc_rev2), |
| 2057 | sx_read_module_byte(board, addr, mc_mtaasic_rev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2058 | |
| 2059 | /* The following combinations are illegal: It should theoretically |
| 2060 | work, but timing problems make the bus HANG. */ |
| 2061 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2062 | if (mod_compat_type(type) != board->ta_type) { |
| 2063 | printk(KERN_ERR "sx: This is an invalid " |
| 2064 | "configuration.\nDon't mix TA/MTA/SXDC on the " |
| 2065 | "same hostadapter.\n"); |
| 2066 | chans = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2067 | break; |
| 2068 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2069 | if ((IS_EISA_BOARD(board) || |
| 2070 | IS_SI_BOARD(board)) && |
| 2071 | (mod_compat_type(type) == 4)) { |
| 2072 | printk(KERN_ERR "sx: This is an invalid " |
| 2073 | "configuration.\nDon't use SXDCs on an SI/XIO " |
| 2074 | "adapter.\n"); |
| 2075 | chans = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2076 | break; |
| 2077 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2078 | #if 0 /* Problem fixed: firmware 3.05 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2079 | if (IS_SX_BOARD(board) && (type == TA8)) { |
| 2080 | /* There are some issues with the firmware and the DCD/RTS |
| 2081 | lines. It might work if you tie them together or something. |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2082 | It might also work if you get a newer sx_firmware. Therefore |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2083 | this is just a warning. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2084 | printk(KERN_WARNING |
| 2085 | "sx: The SX host doesn't work too well " |
| 2086 | "with the TA8 adapters.\nSpecialix is working on it.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2087 | } |
| 2088 | #endif |
| 2089 | } |
| 2090 | |
| 2091 | if (chans) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2092 | if (board->irq > 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2093 | /* fixed irq, probably PCI */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2094 | if (sx_irqmask & (1 << board->irq)) { /* may we use this irq? */ |
| 2095 | if (request_irq(board->irq, sx_interrupt, |
| 2096 | IRQF_SHARED | IRQF_DISABLED, |
| 2097 | "sx", board)) { |
| 2098 | printk(KERN_ERR "sx: Cannot allocate " |
| 2099 | "irq %d.\n", board->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2100 | board->irq = 0; |
| 2101 | } |
| 2102 | } else |
| 2103 | board->irq = 0; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2104 | } else if (board->irq < 0 && sx_irqmask) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2105 | /* auto-allocate irq */ |
| 2106 | int irqnr; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2107 | int irqmask = sx_irqmask & (IS_SX_BOARD(board) ? |
| 2108 | SX_ISA_IRQ_MASK : SI2_ISA_IRQ_MASK); |
| 2109 | for (irqnr = 15; irqnr > 0; irqnr--) |
| 2110 | if (irqmask & (1 << irqnr)) |
| 2111 | if (!request_irq(irqnr, sx_interrupt, |
| 2112 | IRQF_SHARED | IRQF_DISABLED, |
| 2113 | "sx", board)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2114 | break; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2115 | if (!irqnr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2116 | printk(KERN_ERR "sx: Cannot allocate IRQ.\n"); |
| 2117 | board->irq = irqnr; |
| 2118 | } else |
| 2119 | board->irq = 0; |
| 2120 | |
| 2121 | if (board->irq) { |
| 2122 | /* Found a valid interrupt, start up interrupts! */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2123 | sx_dprintk(SX_DEBUG_INIT, "Using irq %d.\n", |
| 2124 | board->irq); |
| 2125 | sx_start_interrupts(board); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2126 | board->poll = sx_slowpoll; |
| 2127 | board->flags |= SX_IRQ_ALLOCATED; |
| 2128 | } else { |
| 2129 | /* no irq: setup board for polled operation */ |
| 2130 | board->poll = sx_poll; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2131 | sx_dprintk(SX_DEBUG_INIT, "Using poll-interval %d.\n", |
| 2132 | board->poll); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2133 | } |
| 2134 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2135 | /* The timer should be initialized anyway: That way we can |
| 2136 | safely del_timer it when the module is unloaded. */ |
| 2137 | init_timer(&board->timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | |
| 2139 | if (board->poll) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2140 | board->timer.data = (unsigned long)board; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2141 | board->timer.function = sx_pollfunc; |
| 2142 | board->timer.expires = jiffies + board->poll; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2143 | add_timer(&board->timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2144 | } |
| 2145 | } else { |
| 2146 | board->irq = 0; |
| 2147 | } |
| 2148 | |
| 2149 | board->nports = chans; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2150 | sx_dprintk(SX_DEBUG_INIT, "returning %d ports.", board->nports); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2151 | |
| 2152 | func_exit(); |
| 2153 | return chans; |
| 2154 | } |
| 2155 | |
Jiri Slaby | cda5265 | 2006-12-08 02:39:00 -0800 | [diff] [blame] | 2156 | static void __devinit printheader(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2157 | { |
| 2158 | static int header_printed; |
| 2159 | |
| 2160 | if (!header_printed) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2161 | printk(KERN_INFO "Specialix SX driver " |
| 2162 | "(C) 1998/1999 R.E.Wolff@BitWizard.nl\n"); |
| 2163 | printk(KERN_INFO "sx: version " __stringify(SX_VERSION) "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2164 | header_printed = 1; |
| 2165 | } |
| 2166 | } |
| 2167 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2168 | static int __devinit probe_sx(struct sx_board *board) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2169 | { |
| 2170 | struct vpd_prom vpdp; |
| 2171 | char *p; |
| 2172 | int i; |
| 2173 | |
| 2174 | func_enter(); |
| 2175 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2176 | if (!IS_CF_BOARD(board)) { |
| 2177 | sx_dprintk(SX_DEBUG_PROBE, "Going to verify vpd prom at %p.\n", |
| 2178 | board->base + SX_VPD_ROM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | |
| 2180 | if (sx_debug & SX_DEBUG_PROBE) |
| 2181 | my_hd_io(board->base + SX_VPD_ROM, 0x40); |
| 2182 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2183 | p = (char *)&vpdp; |
| 2184 | for (i = 0; i < sizeof(struct vpd_prom); i++) |
| 2185 | *p++ = read_sx_byte(board, SX_VPD_ROM + i * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2186 | |
| 2187 | if (sx_debug & SX_DEBUG_PROBE) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2188 | my_hd(&vpdp, 0x20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2189 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2190 | sx_dprintk(SX_DEBUG_PROBE, "checking identifier...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2191 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2192 | if (strncmp(vpdp.identifier, SX_VPD_IDENT_STRING, 16) != 0) { |
| 2193 | sx_dprintk(SX_DEBUG_PROBE, "Got non-SX identifier: " |
| 2194 | "'%s'\n", vpdp.identifier); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2195 | return 0; |
| 2196 | } |
| 2197 | } |
| 2198 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2199 | printheader(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2200 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2201 | if (!IS_CF_BOARD(board)) { |
| 2202 | printk(KERN_DEBUG "sx: Found an SX board at %lx\n", |
| 2203 | board->hw_base); |
| 2204 | printk(KERN_DEBUG "sx: hw_rev: %d, assembly level: %d, " |
| 2205 | "uniq ID:%08x, ", |
| 2206 | vpdp.hwrev, vpdp.hwass, vpdp.uniqid); |
| 2207 | printk("Manufactured: %d/%d\n", 1970 + vpdp.myear, vpdp.mweek); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2208 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2209 | if ((((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) != |
| 2210 | SX_PCI_UNIQUEID1) && (((vpdp.uniqid >> 24) & |
| 2211 | SX_UNIQUEID_MASK) != SX_ISA_UNIQUEID1)) { |
| 2212 | /* This might be a bit harsh. This was the primary |
| 2213 | reason the SX/ISA card didn't work at first... */ |
| 2214 | printk(KERN_ERR "sx: Hmm. Not an SX/PCI or SX/ISA " |
| 2215 | "card. Sorry: giving up.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2216 | return (0); |
| 2217 | } |
| 2218 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2219 | if (((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) == |
| 2220 | SX_ISA_UNIQUEID1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2221 | if (((unsigned long)board->hw_base) & 0x8000) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2222 | printk(KERN_WARNING "sx: Warning: There may be " |
| 2223 | "hardware problems with the card at " |
| 2224 | "%lx.\n", board->hw_base); |
| 2225 | printk(KERN_WARNING "sx: Read sx.txt for more " |
| 2226 | "info.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2227 | } |
| 2228 | } |
| 2229 | } |
| 2230 | |
| 2231 | board->nports = -1; |
| 2232 | |
| 2233 | /* This resets the processor, and keeps it off the bus. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2234 | if (!sx_reset(board)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2235 | return 0; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2236 | sx_dprintk(SX_DEBUG_INIT, "reset the board...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2238 | func_exit(); |
| 2239 | return 1; |
| 2240 | } |
| 2241 | |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 2242 | #if defined(CONFIG_ISA) || defined(CONFIG_EISA) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2243 | |
| 2244 | /* Specialix probes for this card at 32k increments from 640k to 16M. |
| 2245 | I consider machines with less than 16M unlikely nowadays, so I'm |
| 2246 | not probing above 1Mb. Also, 0xa0000, 0xb0000, are taken by the VGA |
| 2247 | card. 0xe0000 and 0xf0000 are taken by the BIOS. That only leaves |
| 2248 | 0xc0000, 0xc8000, 0xd0000 and 0xd8000 . */ |
| 2249 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2250 | static int __devinit probe_si(struct sx_board *board) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2251 | { |
| 2252 | int i; |
| 2253 | |
| 2254 | func_enter(); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2255 | sx_dprintk(SX_DEBUG_PROBE, "Going to verify SI signature hw %lx at " |
| 2256 | "%p.\n", board->hw_base, board->base + SI2_ISA_ID_BASE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2257 | |
| 2258 | if (sx_debug & SX_DEBUG_PROBE) |
| 2259 | my_hd_io(board->base + SI2_ISA_ID_BASE, 0x8); |
| 2260 | |
| 2261 | if (!IS_EISA_BOARD(board)) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2262 | if (IS_SI1_BOARD(board)) { |
| 2263 | for (i = 0; i < 8; i++) { |
| 2264 | write_sx_byte(board, SI2_ISA_ID_BASE + 7 - i,i); |
| 2265 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2266 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2267 | for (i = 0; i < 8; i++) { |
| 2268 | if ((read_sx_byte(board, SI2_ISA_ID_BASE + 7 - i) & 7) |
| 2269 | != i) { |
| 2270 | func_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2271 | return 0; |
| 2272 | } |
| 2273 | } |
| 2274 | } |
| 2275 | |
| 2276 | /* Now we're pretty much convinced that there is an SI board here, |
| 2277 | but to prevent trouble, we'd better double check that we don't |
| 2278 | have an SI1 board when we're probing for an SI2 board.... */ |
| 2279 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2280 | write_sx_byte(board, SI2_ISA_ID_BASE, 0x10); |
| 2281 | if (IS_SI1_BOARD(board)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2282 | /* This should be an SI1 board, which has this |
| 2283 | location writable... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2284 | if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) { |
| 2285 | func_exit(); |
| 2286 | return 0; |
Marc Zyngier | 04a3d31 | 2006-02-26 12:02:56 +0100 | [diff] [blame] | 2287 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2288 | } else { |
| 2289 | /* This should be an SI2 board, which has the bottom |
| 2290 | 3 bits non-writable... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2291 | if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) { |
| 2292 | func_exit(); |
| 2293 | return 0; |
Marc Zyngier | 04a3d31 | 2006-02-26 12:02:56 +0100 | [diff] [blame] | 2294 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2295 | } |
| 2296 | |
| 2297 | /* Now we're pretty much convinced that there is an SI board here, |
| 2298 | but to prevent trouble, we'd better double check that we don't |
| 2299 | have an SI1 board when we're probing for an SI2 board.... */ |
| 2300 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2301 | write_sx_byte(board, SI2_ISA_ID_BASE, 0x10); |
| 2302 | if (IS_SI1_BOARD(board)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | /* This should be an SI1 board, which has this |
| 2304 | location writable... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2305 | if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2306 | func_exit(); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2307 | return 0; |
Marc Zyngier | 04a3d31 | 2006-02-26 12:02:56 +0100 | [diff] [blame] | 2308 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2309 | } else { |
| 2310 | /* This should be an SI2 board, which has the bottom |
| 2311 | 3 bits non-writable... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2312 | if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) { |
| 2313 | func_exit(); |
| 2314 | return 0; |
Marc Zyngier | 04a3d31 | 2006-02-26 12:02:56 +0100 | [diff] [blame] | 2315 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2316 | } |
| 2317 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2318 | printheader(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2320 | printk(KERN_DEBUG "sx: Found an SI board at %lx\n", board->hw_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2321 | /* Compared to the SX boards, it is a complete guess as to what |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2322 | this card is up to... */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2323 | |
| 2324 | board->nports = -1; |
| 2325 | |
| 2326 | /* This resets the processor, and keeps it off the bus. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2327 | if (!sx_reset(board)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2328 | return 0; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2329 | sx_dprintk(SX_DEBUG_INIT, "reset the board...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2331 | func_exit(); |
| 2332 | return 1; |
| 2333 | } |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 2334 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2335 | |
Jeff Dike | b68e31d | 2006-10-02 02:17:18 -0700 | [diff] [blame] | 2336 | static const struct tty_operations sx_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2337 | .break_ctl = sx_break, |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2338 | .open = sx_open, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2339 | .close = gs_close, |
| 2340 | .write = gs_write, |
| 2341 | .put_char = gs_put_char, |
| 2342 | .flush_chars = gs_flush_chars, |
| 2343 | .write_room = gs_write_room, |
| 2344 | .chars_in_buffer = gs_chars_in_buffer, |
| 2345 | .flush_buffer = gs_flush_buffer, |
| 2346 | .ioctl = sx_ioctl, |
| 2347 | .throttle = sx_throttle, |
| 2348 | .unthrottle = sx_unthrottle, |
| 2349 | .set_termios = gs_set_termios, |
| 2350 | .stop = gs_stop, |
| 2351 | .start = gs_start, |
| 2352 | .hangup = gs_hangup, |
| 2353 | .tiocmget = sx_tiocmget, |
| 2354 | .tiocmset = sx_tiocmset, |
| 2355 | }; |
| 2356 | |
| 2357 | static int sx_init_drivers(void) |
| 2358 | { |
| 2359 | int error; |
| 2360 | |
| 2361 | func_enter(); |
| 2362 | |
| 2363 | sx_driver = alloc_tty_driver(sx_nports); |
| 2364 | if (!sx_driver) |
| 2365 | return 1; |
| 2366 | sx_driver->owner = THIS_MODULE; |
| 2367 | sx_driver->driver_name = "specialix_sx"; |
| 2368 | sx_driver->name = "ttyX"; |
| 2369 | sx_driver->major = SX_NORMAL_MAJOR; |
| 2370 | sx_driver->type = TTY_DRIVER_TYPE_SERIAL; |
| 2371 | sx_driver->subtype = SERIAL_TYPE_NORMAL; |
| 2372 | sx_driver->init_termios = tty_std_termios; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2373 | sx_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 2374 | sx_driver->init_termios.c_ispeed = 9600; |
| 2375 | sx_driver->init_termios.c_ospeed = 9600; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2376 | sx_driver->flags = TTY_DRIVER_REAL_RAW; |
| 2377 | tty_set_operations(sx_driver, &sx_ops); |
| 2378 | |
| 2379 | if ((error = tty_register_driver(sx_driver))) { |
| 2380 | put_tty_driver(sx_driver); |
| 2381 | printk(KERN_ERR "sx: Couldn't register sx driver, error = %d\n", |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2382 | error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | return 1; |
| 2384 | } |
| 2385 | func_exit(); |
| 2386 | return 0; |
| 2387 | } |
| 2388 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2389 | static int sx_init_portstructs(int nboards, int nports) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2390 | { |
| 2391 | struct sx_board *board; |
| 2392 | struct sx_port *port; |
| 2393 | int i, j; |
| 2394 | int addr, chans; |
| 2395 | int portno; |
| 2396 | |
| 2397 | func_enter(); |
| 2398 | |
| 2399 | /* Many drivers statically allocate the maximum number of ports |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2400 | There is no reason not to allocate them dynamically. |
| 2401 | Is there? -- REW */ |
Jiri Slaby | 4a7cb69 | 2006-12-08 02:38:59 -0800 | [diff] [blame] | 2402 | sx_ports = kcalloc(nports, sizeof(struct sx_port), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2403 | if (!sx_ports) |
| 2404 | return -ENOMEM; |
| 2405 | |
| 2406 | port = sx_ports; |
| 2407 | for (i = 0; i < nboards; i++) { |
| 2408 | board = &boards[i]; |
| 2409 | board->ports = port; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2410 | for (j = 0; j < boards[i].nports; j++) { |
| 2411 | sx_dprintk(SX_DEBUG_INIT, "initing port %d\n", j); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | port->gs.magic = SX_MAGIC; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2413 | port->gs.close_delay = HZ / 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | port->gs.closing_wait = 30 * HZ; |
| 2415 | port->board = board; |
| 2416 | port->gs.rd = &sx_real_driver; |
| 2417 | #ifdef NEW_WRITE_LOCKING |
Ingo Molnar | 81861d7 | 2006-03-23 03:00:44 -0800 | [diff] [blame] | 2418 | port->gs.port_write_mutex = MUTEX; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2419 | #endif |
Ingo Molnar | 34af946 | 2006-06-27 02:53:55 -0700 | [diff] [blame] | 2420 | spin_lock_init(&port->gs.driver_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2421 | /* |
| 2422 | * Initializing wait queue |
| 2423 | */ |
| 2424 | init_waitqueue_head(&port->gs.open_wait); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2425 | init_waitqueue_head(&port->gs.close_wait); |
| 2426 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2427 | port++; |
| 2428 | } |
| 2429 | } |
| 2430 | |
| 2431 | port = sx_ports; |
| 2432 | portno = 0; |
| 2433 | for (i = 0; i < nboards; i++) { |
| 2434 | board = &boards[i]; |
| 2435 | board->port_base = portno; |
| 2436 | /* Possibly the configuration was rejected. */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2437 | sx_dprintk(SX_DEBUG_PROBE, "Board has %d channels\n", |
| 2438 | board->nports); |
| 2439 | if (board->nports <= 0) |
| 2440 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2441 | /* XXX byteorder ?? */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2442 | for (addr = 0x80; addr != 0; |
| 2443 | addr = read_sx_word(board, addr) & 0x7fff) { |
| 2444 | chans = sx_read_module_byte(board, addr, mc_type); |
| 2445 | sx_dprintk(SX_DEBUG_PROBE, "Module at %x: %d " |
| 2446 | "channels\n", addr, chans); |
| 2447 | sx_dprintk(SX_DEBUG_PROBE, "Port at"); |
| 2448 | for (j = 0; j < chans; j++) { |
| 2449 | /* The "sx-way" is the way it SHOULD be done. |
| 2450 | That way in the future, the firmware may for |
| 2451 | example pack the structures a bit more |
| 2452 | efficient. Neil tells me it isn't going to |
| 2453 | happen anytime soon though. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2454 | if (IS_SX_BOARD(board)) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2455 | port->ch_base = sx_read_module_word( |
| 2456 | board, addr + j * 2, |
| 2457 | mc_chan_pointer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2458 | else |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2459 | port->ch_base = addr + 0x100 + 0x300 *j; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2460 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2461 | sx_dprintk(SX_DEBUG_PROBE, " %x", |
| 2462 | port->ch_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2463 | port->line = portno++; |
| 2464 | port++; |
| 2465 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2466 | sx_dprintk(SX_DEBUG_PROBE, "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2467 | } |
| 2468 | /* This has to be done earlier. */ |
| 2469 | /* board->flags |= SX_BOARD_INITIALIZED; */ |
| 2470 | } |
| 2471 | |
| 2472 | func_exit(); |
| 2473 | return 0; |
| 2474 | } |
| 2475 | |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2476 | static unsigned int sx_find_free_board(void) |
| 2477 | { |
| 2478 | unsigned int i; |
| 2479 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2480 | for (i = 0; i < SX_NBOARDS; i++) |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2481 | if (!(boards[i].flags & SX_BOARD_PRESENT)) |
| 2482 | break; |
| 2483 | |
| 2484 | return i; |
| 2485 | } |
| 2486 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2487 | static void __exit sx_release_drivers(void) |
| 2488 | { |
| 2489 | func_enter(); |
| 2490 | tty_unregister_driver(sx_driver); |
| 2491 | put_tty_driver(sx_driver); |
| 2492 | func_exit(); |
| 2493 | } |
| 2494 | |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2495 | static void __devexit sx_remove_card(struct sx_board *board) |
| 2496 | { |
| 2497 | if (board->flags & SX_BOARD_INITIALIZED) { |
| 2498 | /* The board should stop messing with us. (actually I mean the |
| 2499 | interrupt) */ |
| 2500 | sx_reset(board); |
| 2501 | if ((board->irq) && (board->flags & SX_IRQ_ALLOCATED)) |
| 2502 | free_irq(board->irq, board); |
| 2503 | |
| 2504 | /* It is safe/allowed to del_timer a non-active timer */ |
| 2505 | del_timer(&board->timer); |
| 2506 | iounmap(board->base); |
| 2507 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2508 | board->flags &= ~(SX_BOARD_INITIALIZED | SX_BOARD_PRESENT); |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2509 | } |
| 2510 | } |
| 2511 | |
| 2512 | #ifdef CONFIG_EISA |
| 2513 | |
| 2514 | static int __devinit sx_eisa_probe(struct device *dev) |
| 2515 | { |
| 2516 | struct eisa_device *edev = to_eisa_device(dev); |
| 2517 | struct sx_board *board; |
| 2518 | unsigned long eisa_slot = edev->base_addr; |
| 2519 | unsigned int i; |
| 2520 | int retval = -EIO; |
| 2521 | |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2522 | mutex_lock(&sx_boards_lock); |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2523 | i = sx_find_free_board(); |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2524 | if (i == SX_NBOARDS) { |
| 2525 | mutex_unlock(&sx_boards_lock); |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2526 | goto err; |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2527 | } |
| 2528 | board = &boards[i]; |
| 2529 | board->flags |= SX_BOARD_PRESENT; |
| 2530 | mutex_unlock(&sx_boards_lock); |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2531 | |
| 2532 | dev_info(dev, "XIO : Signature found in EISA slot %lu, " |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2533 | "Product %d Rev %d (REPORT THIS TO LKLM)\n", |
| 2534 | eisa_slot >> 12, |
| 2535 | inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 2), |
| 2536 | inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 3)); |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2537 | |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2538 | board->eisa_base = eisa_slot; |
| 2539 | board->flags &= ~SX_BOARD_TYPE; |
| 2540 | board->flags |= SI_EISA_BOARD; |
| 2541 | |
| 2542 | board->hw_base = ((inb(eisa_slot + 0xc01) << 8) + |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2543 | inb(eisa_slot + 0xc00)) << 16; |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2544 | board->base2 = |
| 2545 | board->base = ioremap(board->hw_base, SI2_EISA_WINDOW_LEN); |
| 2546 | |
| 2547 | sx_dprintk(SX_DEBUG_PROBE, "IO hw_base address: %lx\n", board->hw_base); |
| 2548 | sx_dprintk(SX_DEBUG_PROBE, "base: %p\n", board->base); |
| 2549 | board->irq = inb(eisa_slot + 0xc02) >> 4; |
| 2550 | sx_dprintk(SX_DEBUG_PROBE, "IRQ: %d\n", board->irq); |
| 2551 | |
| 2552 | if (!probe_si(board)) |
| 2553 | goto err_unmap; |
| 2554 | |
| 2555 | dev_set_drvdata(dev, board); |
| 2556 | |
| 2557 | return 0; |
| 2558 | err_unmap: |
| 2559 | iounmap(board->base); |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2560 | board->flags &= ~SX_BOARD_PRESENT; |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2561 | err: |
| 2562 | return retval; |
| 2563 | } |
| 2564 | |
| 2565 | static int __devexit sx_eisa_remove(struct device *dev) |
| 2566 | { |
| 2567 | struct sx_board *board = dev_get_drvdata(dev); |
| 2568 | |
| 2569 | sx_remove_card(board); |
| 2570 | |
| 2571 | return 0; |
| 2572 | } |
| 2573 | |
| 2574 | static struct eisa_device_id sx_eisa_tbl[] = { |
| 2575 | { "SLX" }, |
| 2576 | { "" } |
| 2577 | }; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2578 | |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2579 | MODULE_DEVICE_TABLE(eisa, sx_eisa_tbl); |
| 2580 | |
| 2581 | static struct eisa_driver sx_eisadriver = { |
| 2582 | .id_table = sx_eisa_tbl, |
| 2583 | .driver = { |
| 2584 | .name = "sx", |
| 2585 | .probe = sx_eisa_probe, |
| 2586 | .remove = __devexit_p(sx_eisa_remove), |
| 2587 | } |
| 2588 | }; |
| 2589 | |
| 2590 | #endif |
| 2591 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2592 | /******************************************************** |
| 2593 | * Setting bit 17 in the CNTRL register of the PLX 9050 * |
| 2594 | * chip forces a retry on writes while a read is pending.* |
| 2595 | * This is to prevent the card locking up on Intel Xeon * |
| 2596 | * multiprocessor systems with the NX chipset. -- NV * |
| 2597 | ********************************************************/ |
| 2598 | |
| 2599 | /* Newer cards are produced with this bit set from the configuration |
| 2600 | EEprom. As the bit is read/write for the CPU, we can fix it here, |
| 2601 | if we detect that it isn't set correctly. -- REW */ |
| 2602 | |
Jiri Slaby | cda5265 | 2006-12-08 02:39:00 -0800 | [diff] [blame] | 2603 | static void __devinit fix_sx_pci(struct pci_dev *pdev, struct sx_board *board) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2604 | { |
| 2605 | unsigned int hwbase; |
| 2606 | void __iomem *rebase; |
| 2607 | unsigned int t; |
| 2608 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2609 | #define CNTRL_REG_OFFSET 0x50 |
| 2610 | #define CNTRL_REG_GOODVALUE 0x18260000 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2611 | |
| 2612 | pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &hwbase); |
| 2613 | hwbase &= PCI_BASE_ADDRESS_MEM_MASK; |
| 2614 | rebase = ioremap(hwbase, 0x80); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2615 | t = readl(rebase + CNTRL_REG_OFFSET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2616 | if (t != CNTRL_REG_GOODVALUE) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2617 | printk(KERN_DEBUG "sx: performing cntrl reg fix: %08x -> " |
| 2618 | "%08x\n", t, CNTRL_REG_GOODVALUE); |
| 2619 | writel(CNTRL_REG_GOODVALUE, rebase + CNTRL_REG_OFFSET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2620 | } |
| 2621 | iounmap(rebase); |
| 2622 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2623 | |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2624 | static int __devinit sx_pci_probe(struct pci_dev *pdev, |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2625 | const struct pci_device_id *ent) |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2626 | { |
| 2627 | struct sx_board *board; |
| 2628 | unsigned int i; |
| 2629 | int retval = -EIO; |
| 2630 | |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2631 | mutex_lock(&sx_boards_lock); |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2632 | i = sx_find_free_board(); |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2633 | if (i == SX_NBOARDS) { |
| 2634 | mutex_unlock(&sx_boards_lock); |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2635 | goto err; |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2636 | } |
| 2637 | board = &boards[i]; |
| 2638 | board->flags |= SX_BOARD_PRESENT; |
| 2639 | mutex_unlock(&sx_boards_lock); |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2640 | |
| 2641 | retval = pci_enable_device(pdev); |
| 2642 | if (retval) |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2643 | goto err_flag; |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2644 | |
| 2645 | board->flags &= ~SX_BOARD_TYPE; |
| 2646 | board->flags |= (pdev->subsystem_vendor == 0x200) ? SX_PCI_BOARD : |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2647 | SX_CFPCI_BOARD; |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2648 | |
| 2649 | /* CF boards use base address 3.... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2650 | if (IS_CF_BOARD(board)) |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2651 | board->hw_base = pci_resource_start(pdev, 3); |
| 2652 | else |
| 2653 | board->hw_base = pci_resource_start(pdev, 2); |
| 2654 | board->base2 = |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2655 | board->base = ioremap(board->hw_base, WINDOW_LEN(board)); |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2656 | if (!board->base) { |
| 2657 | dev_err(&pdev->dev, "ioremap failed\n"); |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2658 | goto err_flag; |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2659 | } |
| 2660 | |
| 2661 | /* Most of the stuff on the CF board is offset by 0x18000 .... */ |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2662 | if (IS_CF_BOARD(board)) |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2663 | board->base += 0x18000; |
| 2664 | |
| 2665 | board->irq = pdev->irq; |
| 2666 | |
| 2667 | dev_info(&pdev->dev, "Got a specialix card: %p(%d) %x.\n", board->base, |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2668 | board->irq, board->flags); |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2669 | |
| 2670 | if (!probe_sx(board)) { |
| 2671 | retval = -EIO; |
| 2672 | goto err_unmap; |
| 2673 | } |
| 2674 | |
| 2675 | fix_sx_pci(pdev, board); |
| 2676 | |
| 2677 | pci_set_drvdata(pdev, board); |
| 2678 | |
| 2679 | return 0; |
| 2680 | err_unmap: |
| 2681 | iounmap(board->base2); |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2682 | err_flag: |
| 2683 | board->flags &= ~SX_BOARD_PRESENT; |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2684 | err: |
| 2685 | return retval; |
| 2686 | } |
| 2687 | |
| 2688 | static void __devexit sx_pci_remove(struct pci_dev *pdev) |
| 2689 | { |
| 2690 | struct sx_board *board = pci_get_drvdata(pdev); |
| 2691 | |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2692 | sx_remove_card(board); |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2693 | } |
| 2694 | |
| 2695 | /* Specialix has a whole bunch of cards with 0x2000 as the device ID. They say |
| 2696 | its because the standard requires it. So check for SUBVENDOR_ID. */ |
| 2697 | static struct pci_device_id sx_pci_tbl[] = { |
| 2698 | { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8, |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2699 | .subvendor = 0x0200,.subdevice = PCI_ANY_ID }, |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2700 | { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8, |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2701 | .subvendor = 0x0300,.subdevice = PCI_ANY_ID }, |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2702 | { 0 } |
| 2703 | }; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2704 | |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2705 | MODULE_DEVICE_TABLE(pci, sx_pci_tbl); |
| 2706 | |
| 2707 | static struct pci_driver sx_pcidriver = { |
| 2708 | .name = "sx", |
| 2709 | .id_table = sx_pci_tbl, |
| 2710 | .probe = sx_pci_probe, |
| 2711 | .remove = __devexit_p(sx_pci_remove) |
| 2712 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2713 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2714 | static int __init sx_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2715 | { |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2716 | #ifdef CONFIG_EISA |
| 2717 | int retval1; |
| 2718 | #endif |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 2719 | #ifdef CONFIG_ISA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2720 | struct sx_board *board; |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 2721 | unsigned int i; |
| 2722 | #endif |
| 2723 | unsigned int found = 0; |
| 2724 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2725 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2726 | func_enter(); |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2727 | sx_dprintk(SX_DEBUG_INIT, "Initing sx module... (sx_debug=%d)\n", |
| 2728 | sx_debug); |
| 2729 | if (abs((long)(&sx_debug) - sx_debug) < 0x10000) { |
| 2730 | printk(KERN_WARNING "sx: sx_debug is an address, instead of a " |
| 2731 | "value. Assuming -1.\n(%p)\n", &sx_debug); |
| 2732 | sx_debug = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2733 | } |
| 2734 | |
| 2735 | if (misc_register(&sx_fw_device) < 0) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2736 | printk(KERN_ERR "SX: Unable to register firmware loader " |
| 2737 | "driver.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2738 | return -EIO; |
| 2739 | } |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 2740 | #ifdef CONFIG_ISA |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2741 | for (i = 0; i < NR_SX_ADDRS; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2742 | board = &boards[found]; |
| 2743 | board->hw_base = sx_probe_addrs[i]; |
| 2744 | board->base2 = |
| 2745 | board->base = ioremap(board->hw_base, SX_WINDOW_LEN); |
| 2746 | board->flags &= ~SX_BOARD_TYPE; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2747 | board->flags |= SX_ISA_BOARD; |
| 2748 | board->irq = sx_irqmask ? -1 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2749 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2750 | if (probe_sx(board)) { |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2751 | board->flags |= SX_BOARD_PRESENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2752 | found++; |
| 2753 | } else { |
| 2754 | iounmap(board->base); |
| 2755 | } |
| 2756 | } |
| 2757 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2758 | for (i = 0; i < NR_SI_ADDRS; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2759 | board = &boards[found]; |
| 2760 | board->hw_base = si_probe_addrs[i]; |
| 2761 | board->base2 = |
| 2762 | board->base = ioremap(board->hw_base, SI2_ISA_WINDOW_LEN); |
| 2763 | board->flags &= ~SX_BOARD_TYPE; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2764 | board->flags |= SI_ISA_BOARD; |
| 2765 | board->irq = sx_irqmask ? -1 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2766 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2767 | if (probe_si(board)) { |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2768 | board->flags |= SX_BOARD_PRESENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2769 | found++; |
| 2770 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2771 | iounmap(board->base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | } |
| 2773 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2774 | for (i = 0; i < NR_SI1_ADDRS; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2775 | board = &boards[found]; |
| 2776 | board->hw_base = si1_probe_addrs[i]; |
| 2777 | board->base2 = |
| 2778 | board->base = ioremap(board->hw_base, SI1_ISA_WINDOW_LEN); |
| 2779 | board->flags &= ~SX_BOARD_TYPE; |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2780 | board->flags |= SI1_ISA_BOARD; |
| 2781 | board->irq = sx_irqmask ? -1 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2782 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2783 | if (probe_si(board)) { |
Jiri Slaby | 42f6384 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2784 | board->flags |= SX_BOARD_PRESENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2785 | found++; |
| 2786 | } else { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2787 | iounmap(board->base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2788 | } |
| 2789 | } |
Jiri Slaby | 927a6f9 | 2006-12-08 02:39:02 -0800 | [diff] [blame] | 2790 | #endif |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2791 | #ifdef CONFIG_EISA |
| 2792 | retval1 = eisa_driver_register(&sx_eisadriver); |
| 2793 | #endif |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2794 | retval = pci_register_driver(&sx_pcidriver); |
| 2795 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2796 | if (found) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2797 | printk(KERN_INFO "sx: total of %d boards detected.\n", found); |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2798 | retval = 0; |
| 2799 | } else if (retval) { |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2800 | #ifdef CONFIG_EISA |
| 2801 | if (retval1) |
| 2802 | #endif |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2803 | misc_deregister(&sx_fw_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2804 | } |
| 2805 | |
| 2806 | func_exit(); |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2807 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2808 | } |
| 2809 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2810 | static void __exit sx_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2811 | { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2812 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2813 | |
| 2814 | func_enter(); |
Jiri Slaby | 18f813e | 2006-12-08 02:39:01 -0800 | [diff] [blame] | 2815 | #ifdef CONFIG_EISA |
| 2816 | eisa_driver_unregister(&sx_eisadriver); |
| 2817 | #endif |
Jiri Slaby | 5572e10 | 2006-12-08 02:38:58 -0800 | [diff] [blame] | 2818 | pci_unregister_driver(&sx_pcidriver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2819 | |
Jiri Slaby | 55e7071 | 2006-12-08 02:39:03 -0800 | [diff] [blame] | 2820 | for (i = 0; i < SX_NBOARDS; i++) |
| 2821 | sx_remove_card(&boards[i]); |
| 2822 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2823 | if (misc_deregister(&sx_fw_device) < 0) { |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2824 | printk(KERN_INFO "sx: couldn't deregister firmware loader " |
| 2825 | "device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2826 | } |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2827 | sx_dprintk(SX_DEBUG_CLEANUP, "Cleaning up drivers (%d)\n", |
| 2828 | sx_initialized); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2829 | if (sx_initialized) |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2830 | sx_release_drivers(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2831 | |
Jiri Slaby | 15b611f | 2006-12-08 02:39:04 -0800 | [diff] [blame^] | 2832 | kfree(sx_ports); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2833 | func_exit(); |
| 2834 | } |
| 2835 | |
| 2836 | module_init(sx_init); |
| 2837 | module_exit(sx_exit); |